PO-385

PO-401	SYNTHESIS AND SOME REACTIONS OF SUBSTITUTED 5-IMINO-2-OXOPYRROLES
	BRIAN L. BOOTH, FLORA T. COSTA, M. FERNANDA PROENÇA
	UMIST, UKand Universidade do Minho, Portugal

PO-402	THE REACTION OF 5-AMINO-4-CYANOFORMIMIDOYL IMIDAZOLES WITH TOSYL ISOCYANATE: A MECHANISTIC APPROACH
	Brian L. booth, Alice M. Dias and M. Fernanda Proença
	Universidade do Minho, Portugal and UMIST, UK

PO-403	SYNTHESIS OF PRECURSORS OF TRIMETHOXYELLIPTICINES
	M. Manuela M. Raposo,Alexandra M. B. Pereira,A.M.F. Oliveira-Campos and Patrick V.R. Shannon
	Universidade do Minho, Portugal and University of Wales, UK

PO-404	A NEW SYNTHETIC APPROACH TO 4-IMIDAZOLYL 1,2–DIHYDROIMIDAZOLE-2-ONES
	Brian L. Booth, M. Isabel Cabral, Alice M. Dias and M. Fernanda Proença
	Universidade do Minho, Portugal and UMIST, UK

PO-405	EFFECT OF 3,4-DIHYDROXYXANTHONE AND KIELCORIN DERIVATIVES AGAINST HUMAN CANCERCELL LINES AND HUMAN T-LYMPHOCYTE PROLIFERATION
	M. M. M. Pinto,M. S. J. Nascimento, E. Sousa, M. Pedro, F. Cerqueira
	Faculdade de Farmácia – Porto and Instituto Superior de Ciências da Saúde, Portugal

PO-406	ANTI-LEISHMANIAL PYRAZOLOPYRIDINES: SYNTHESIS AND THREE-DIMENSIONAL CORRELATION WITH AMODIAQUINE
	H. Mello, A. Echevarria, A.M.R. Bernardino, M.M. Canto-Cavalheiro and L.L. Leon
	Universidade Federal Rural do Rio de Janeiro, Universidade Federal Fluminense, and Fundação Oswaldo Cruz, Brasil

PO-407	Synthesis of New Bicyclic Pyrrolidines from n-acyl-2-pyrroline
	M. Norton Matos, Carlos A. M. Afonso, and Robert Batey
	Universidade Nova de Lisboa, Portugal and University of Toronto, Canada

PO-408	A NEW SYNTHESIS OF ARCYRIAFLAVIN-A
	M. Manuel B. Marques, Sundaresan Prabhakar, Ana M. Lobo, Paula S. Branco
	Centro de Química Fina e Biotecnologia and SINTOR-UNINOVA; Portugal

PO-409	An approach to the synthesis of (±)-tryprostatin b using the rearrangement of 3-alkyl-1-allylindoles to 3-alkyl-2-allylindoles
	A. Sofia Cardoso, Sundaresan Prabhakar and Ana M. Lobo
	Universidade Nova de Lisboa, Portugal

PO-410	AN ASYMMETRIC SYNTHESIS TOWARDS INDOLIZIDINE 167B
	Marta C. Corvo and M. Manuela Pereira
	Universidade Nova de Lisboa, Portugal

PO-411	2-SUBSTITUTED-5-ACETYL-4-THIAZOLYLTRIFLATES AS USEFUL BUILDING BLOCKS FOR THE PREPARATION OF FUNCTIONALISED THIAZOLES
	Antonio Arcadi,Orazio A. Attanasi, Barbara Guidi, Stefania Santeusanio, Elisabetta Rossi
	Università di L‘Aquila, Università di Urbino, and Università di Milano, Italy

PO-412	PHENYLPIPERAZINYLALKYLAMINO SUBSTITUTED PYRIDAZINONES AS POTENTIAL ALPHA-1 ADRENOCEPTOR ANTAGONISTS
	Daniela BARLOCCO, Giorgio CIGNARELLA, Vittorio DAL PIAZ, Federica MONTESANO, Amedeo LEONARDI
	Università di Milano, Università di Firenze, and Recordati s.p.a., Italy

PO-413	Reaction of Electron-poor 1,2-Diaza-1,3-butadienes with Electron-poor Hydrazines
	Orazio A. Attanasi, Lucia De Crescentini, Paolino Filippone and Fabio Mantellini
	Università di Urbino, Italy

PO-414	PHOTOINDUCED SINGLE ELECTRON TRANSFER ON 5-ARYL-1,2,4-OXADIAZOLES: SOME MECHANISTIC INVESTIGATIONS IN THE SYNTHESIS OF QUINAZOLIN-4-ONES
	Silvestre Buscemi, Andrea Pace, Nicolò Vivona, Tullio Caronna, and Alessandro Galia
	Università di Palermo and Politecnico di Milano, Italy

PO-415	Synthesis of Metalloporphyrins – Immobilization on Electrode Surfaces for Catalysis
	Michael WEDEL, Andreas WALTER, Franz-Peter MONTFORTS
	Universität Bremen, Germany

PO-416	Synthetic Studies towards Novel Chlorin-Systems with reactive Diene-Structures
	O. KUTZKI, A. WALTER, F.-P. MONTFORTS
	Universität Bremen, Germany

PO-417	A NEW SYNTHETIC APPROACH TO 2,1,3-BENZOTHIADIAZOLES AND RELATED HETEROCYCLES
	Andrey V. ZIBAREV, Enno LORK, Ruediger MEWS, Paul G. WATSON
	Universität Bremen, Germany

PO-418	BASE CATALYZED CYCLIZATION OF ENYNYL NITRONES: A NEW SYNTHETIC ACCESS TO ANNULATED AZEPIN-2-ONES
	Karin KNOBLOCH, Wolfgang EBERBACH
	University of Freiburg, Germany

PO-419	MACROCYCLIC PORPHYRIN HEXAMERS WITH A NANOMETER-SIZED CAVITY: SYNTHESIS AND BINDING PROPERTIES
	Olivier MONGIN, Marie-Alix VALLOT, Anne SCHUWEY, Albert GOSSAUER
	University of Freiburg, Germany

PO-420	A NOVEL ACCESS TO 13-AZASTEROID AND C-NOR-13-AZASTEROID DERIVATIVES BY 1,7-CYCLIZATION OF ENYNYL NITRONES
	Johannes HÖFLER, Wolfgang EBERBACH
	University of Freiburg, Germany

PO-421	ON THE CYCLIZATION OF α-AMINO ALKYL HYDROXIMATES
	Wolfgang Thimann and Detlef Geffken
	Universität Hamburg, Germany

PO-422	SYNTHESIS OF 4-AMINO-1,2,4-OXDIAZOLIDIN-3,5-DIONES AND THEIR 5‑THIOXO ANALOGUES
	Sandra Zilz and Detlef Geffken
	Universität Hamburg, Germany

PO-423	SYNTHESIS OF 1,2-DIAZETIDIN-3-ONES
	Alf Plortz and Detlef Geffken
	Universität Hamburg, Germany

PO-424	SYNTHESIS AND PROPERTIES OF HETEROSUBSTITUTED PARABANIC ACIDS
	D. Geffken, P.Pomykala and C.Wackendorff
	Universität Hamburg, Germany

PO-425	1-AMINOIMIDAZOLES: SYNTHESES AND STUDIES ON RESTRICTED ROTATION ABOUT N,N-BONDS
	Brigitte HERZOG, Kathrin LIBISELLER, Joachim G. SCHANTL
	Universität Innsbruck, Austria

PO-426	DIVERGENT SYNTHESES OF IMIDAZOLES AND THIAZOLES
	Cuong N. HOANG, Joachim G. SCHANTL
	Universität Innsbruck, Austria

PO-427	On The Synthesis Of Novel 1,2‑Diazine Containing Tricyclic Systems: Preparation Of Dipyridazinodiazepinones And Tetraazaphenazines
	Barbara Matuszczak, Gottfried Heinisch, and Elisabeth Huber
	Universität Innsbruck, Austria

PO-428	VALENCE ISOMERS OF a-PHENYLAZO-KETOCARBENES: CYCLIC AZOMETHINE IMINES
	Arno S. RETTENBACHER, Joachim G. SCHANTL, Klaus WURST
	Universität Innsbruck, Austria

PO-429	IMIDAZOTHIAZOLES BY CYCLOADDITION OF 2-OXO-ARYLHYDRAZONES WITH THIOCYANIC ACID
	Richard PFARINGER, Joachim G. SCHANTL
	Universität Innsbruck, Austria

PO-430	The Heterocyclic Chemistry of Phosphorus: Phosphirenes
	Henry Heydt, Manfred Regitz
	The University of Kaiserslautern, Germany

PO-431	SYNTHESIS OF CF₃ SUBSTITUTED SULFUR CONTAINING FUSED HETEROCYCLES VIA DIASTEREOSELECTIVE CYCLISATION REACTIONS
	M. Wecks, M. Pulst, U. Eilitz, K. Burger, D. Greif
	University of Leipzig and HTWS Zittau, Germany

PO-432	SYNTHESES OF SUBSTITUTED 2,6-IMINO-1,5-DITHIOCINES
	M. Pulst, M. Wecks, D. Greif, U. Eilitz und K. Burger
	University of Leipzig and HTWS Zittau, Germany

PO-433	SPIRO[CYCLOHAXADIENE-AZAHETEROCYCLES] – A NOVEL CLASS OF PHOTOCHROMIC COMPOUNDS
	T. Zimmermann, T. Häupl and O. Brede
	Universität Leipzig, Germany

PO-434	1,3,2,4-DISELENADIPHOSPHETANE-2,4-DISELENIDES: SELENIUM ANALOGUES OF LAWESSON’S REAGENT
	Konstantin KARAGHIOSOFF, Klaus ECKSTEIN, Rüdiger MOTZER
	Universität München, Germany

PO-435	Synthesis of stable and Enantiomerically pure Cyclopropylboronic Esters
	Andreas Witt, Jörg Pietruszka
	Universität Stuttgart, Germany

PO-436	STEREOSELECTIVE ADDITION OF ORGANOMETALLIC COMPOUNDS TO IMINES, NEW SYNTHESIS OF ANISOMYCIN AND RELATED PYRROLINES AND PYRROLIDINES
	Volker JÄGER, Meno BAUR, Oliver SCHWARDT
	Universität Stuttgart, Germany

PO-437	β-LACTAM-CONTAINING PEPTIDE ANALOGUES AS β-TURN MIMICS
	Michael R. LINDER, Joachim PODLECH
	Universität Stuttgart, Germany

PO-438	PREPARATION OF ISOXAZOLINIUM SALTS AND EXPLORATION OF THEIR POTENTIAL IN STEREOSELECTIVE ORGANIC SYNTHESIS
	Volker JÄGER, Marco HENNEBÖHLE, Pierre-Yves LEROY
	Universität Stuttgart, Germany

PO-439	SYNTHESIS OF HYDROXYPYRROLIDINE-N-OXIDES VIA COPE CYCLIZATION
	Volker JÄGER, Andreas M. PALMER
	Universität Stuttgart, Germany

PO-440	ASYMMETRIC INDUCTION IN [4^Å + 2] CYCLOADDITION OF N-ACYLIMINIUM IONS WITH OLEFINS AND SYNTHESIS OF NOVEL IMINOPOLYOLS BY [2 + 2] STAUDINGER REACTION OF HEXENOSE IMINES
	VOLKER JÄGER, ROLF KUGLER, MELANIE AUDRAN
	Universität Stuttgart, Germany

PO-441	structures and spectral properties of the reaction products of 5-[(Z)-arylidene]-2-methylthioimidazolino-4-one with anthranilic acid
	Katarzyna Kiec-Kononowicz, Wolfgang Holzer, and Kurt Mereiter
	Jagiellonian University, Poland and Technical University of Vienna, Austria

PO-442	PREPARATION OF NEW N-ALKYL DIOXOLOPHENOTHIAZINES
	G. Boyer, F. Chatel, R. Faure and J.P. Galy
	Université Aix-Marseille III, France

PO-443	A GENERAL SYNTHESIS OF2-FORMYL-3-ARYLPYRROLES
	C. Franc , C. Cuisinier, F. Denonne and L. Ghosez
	Université Catholique de Louvain, Belgique

PO-444	NEW PROCESS FOR THE SYNTHESIS OF AN ANTIDIABETIC PRECURSOR
	M Elkhatib, C. Duriche, L. Peyrot, J.R. Vignalou, H. Delalu
	Université Claude Bernard, France

PO-445	TOTAL SYNTHESIS OF LUZOPEPTIN E₂
	Delphine VALOGNES, Marco A. CIUFOLINI
	Université Claude Bernard- Lyon I UPRESA, France

PO-446	SYNTHESIS OF NEW HETEROCYCLIC DERIVATIVES INVOLVING AN INDOLIC OR PYRROLIC STRUCTURE
	C. Duriche, M. Elkhatib, L. Peyrot, H. Delalu
	Université de Lyon I, France

PO-447	Synthesis and cyclisation of N-[(7-methyl-4-oxo-1,4-dihydro[1,8]naphthyridin-3-yl)carbonyl]guanidine
	Christophe PLISSON, Jacques CHENAULT
	Université d'Orléans, France

PO-448	DIASTEREOSELECTIVE TRANSFORMATIONS OF ARENE Cr(CO)₃ COMPLEXES: TOWARDS THE SYNTHESIS OF LYTHRACEAE ALKALOIDS
	E. Peter Kündig, Hassen Ratni
	Université de Geneve, Switzerland

PO-449	IMIDAZOQUINOLINETHIONES FROM QUINOLINES : A NEW MOLECULAR REARRANGEMENT
	Valérie THIERY^,, David ROE, Charles W. REES, Thierry BESSON
	Université de la Rochelle, France and Imperial College of Science, Technology and Medicine, UK

PO-450	SYNTHESIS OF SUBSTITUTED BENZOHETEROARYL[2,3-c]QUINOLINES, 6-METHYLBENZOHETEROARYL[2,3-c]QUINOLINES AND 5‑METHYLBENZOHETEROARYL[2,3-c]ISOQUINOLINES BY PALLADIUM-CATALYSED COUPLING
	S. Deprets and G. Kirsch
	Université de Metz, France

PO-451	Studies on the Asymmetric Total Synthesis of (+)-Chatancin
	András Toró and Pierre Deslongchamps
	Université de Sherbrooke, Canada

PO-452	ASYMMETRIC SYNTHESIS OF (S)-4-OXOPIPECOLIC ACID
	Karolin Partogyan-Halim, Laure Besson, David J. Aitken and Henri-Philippe Husson
	Université René Descartes, France

PO-453	A NOVEL HIGHLY REGIOSELECTIVE CYCLIZATION TO 2,2,5,5-TETRASUBSTITUTED DIHYDRFURAN-3-ONES
	Luca Arista, Alain Wagner, Charles Mioskowski, Patrice Talaga
	Université Louis Pasteur de Strasbourg, France and UCB Pharma, Belgium

PO-454	.SYNTHESIS OF BENZIMIDAZOLE DERIVED. CHELATING AGENTS
	Rachid ZNIBER, Ahmed MOUSSAÏF; Redouane ACHOUR; Ahmed Jalal EL HAJJI; Mohammed Zoubair CHERKAOUI; Mostafa EL GHOUL et Abdelghni EL ACHQAR
	Faculté des Sciences, Rabat and Faculté des Sciences Dhar El Mehraz, Maroc

PO-455	NOVEL AZOLYLTHIOALKYUREIDOQUINOLINES AS POTENTIAL CYTOTOXIC AGENTS
	Mohsen Daneshtalab, Minou Khazan, Dai Q. Nguyen
	University of Alberta, Canada

PO-456	STUDIES TOWARDS THE TOTAL SYNTHESIS OF ROSEOPHILIN
	Samantha J. Bamford, Tim Luker, W. Nico Speckamp, Henk Hiemstra
	University of Amsterdam, The Netherlands

PO-457	SYNTHESIS OF THE LEFT HAND FRAGMENT OF SOLANOECLEPIN A
	Jorg C. J. Benningshof, Maarten IJsselstijn, Richard H. Blaauw, Angeline E. van Ginkel, Floris P. J. T. Rutjes and Henk Hiemstra
	University of Amsterdam, The Netherlands

PO-458	A KULINKOVICH-BASED ENTRY INTO N-ACYLIMINIUM IONS
	Lourdes OLLERO, Floris P. J. T. RUTJES, W. Nico SPECKAMP and Henk HIEMSTRA
	University of Amsterdam, The Netherlands

PO-459	SYNTHESIS OF NEW 1-DEAZA PURINE NUCLEOSIDES BY USING AN EFFICIENT AND REGIOSELECTIVE NITRATION REACTION
	Paymaneh Y.F. Deghati, Martin J. Wanner, and Gerrit-Jan Koomen
	University of Amsterdam, The Netherlands

PO-460	A NEW APPROACH TOWARDS THE SYNTHESIS OF 3-AMINO-6-(HETERO)ARYLPYRIDAZINES BASED ON PALLADIUM CATALYZED CROSS COUPLING REACTIONS
	Bert U.W. Maes, Guy L.F. Lemière, Achiel Haemers and Koen Augustyns
	University of Antwerp (RUCA) and University of Antwerp (UIA) Belgium

PO-461	A Biradical Cyclization approach towards New Neocryptolepine Derivatives.
	Tim H.M. Jonckers, Roger Dommisse and Guy L.F. Lemière.
	University of Antwerp (RUCA), Belgium

PO-462	SYNTHESIS OF NEW POLYAZAHETEROCYCLIC COMPOUNDS: 4-TOSYL-3,4,5,6-TETRAHYDRO-2H- PYRIDAZINO[2,3-a][1,3,6]TRIAZOCINES
	Bert U.W. Maes, Guy L.F. Lemière, Achiel Haemers, Koen Augustyns, Alex De Groot and Roger Dommisse
	University of Antwerp (RUCA) and University of Antwerp (UIA) Belgium

PO-463	investigations to double [3.3] sigmatropic rearrangements of 2-allylicoxy-3-trifluoromethylfurans and thiophenes
	Dieter Greif , Annett Fuchs, Klaus Burger
	University of Applied Sciences Zittau/Görlitz and University of Leipzig, Germany

PO-464	SYNTHESIS AND ANTITUMOUR ACTIVITY OF QUINAZOLINE AND PYRIDOPYRIMIDINE INHIBITORS OF THE EPIDERMAL GROWTH FACTOR RECEPTOR FAMILY OF TYROSINE KINASES
	Gordon W. REWCASTLE, Jeff B. SMAILL, William A. DENNY, Alexander J. BRIDGES, Ellen M. DOBRUSIN, William L. ELLIOT, David W. FRY, Ken E. HOOK, Wilbur R. LEOPOLD, Dennis J. MACNAMARA, James M. NELSON, H. D. Hollis SHOWALTER, Veronika SLINTAK,Patrick W. VINCENT, Hairong ZHOU
	The University of Auckland, New Zealand and Parke-Davis Pharmaceutical Research, USA

PO-465	NEW SYNTHESIS OF BENZO[b]XANTHONES FROM 3-FORMYL-CHROMONE AND ortho-BENZOQUINODIMETHANE
	Angela Sandulache, Artur M. S. Silva and José A. S. Cavaleiro
	University of Aveiro, Portugal

PO-466	Studies on polyoxometallate/metalloporphyrin associations
	Isabel C. Santos, Rosália R. L. Martins, M. Manuela M. S. Pereira, Ana M. V. Cavaleiro, M. Graça P. M. S. Neves, José A. S. Cavaleiro
	University of Aveiro, Portugal

PO-467	SUBSTITUTED IMIDAZOLES AS PRECURSORS OF ADENINE DERIVATIVES
	B.L. Booth, M.J. Alves, Alice M. Dias, M. Alice Carvalho and M. Fernanda Proença
	Universidade do Minho, Portugal and UMIST, UK

PO-468	Synthesis of Amphiphilic and Water-Soluble Porphyrins
	João P. C. Tomé, Maria G. P. M. S. Neves, Augusto C. Tomé and José A. S. Cavaleiro
	University of Aveiro, Portugal

PO-469	MESO-TETRAARYLPORPHYRINS AS DIPOLAROPHILES IN 1,3-DIPOLAR CYCLOADDITION REACTIONS
	Ana M. G. Silva, Augusto C. Tomé, Maria G. P. M. S. Neves, Artur M. S. Silva and José A. S. Cavaleiro
	University of Aveiro, Portugal

PO-470	New SYNTHESIS AND PROPERTIES OF MESO‑tetraphenylporphyrin β-thioDERIVATIVES
	C. M. A. Alonso, M. G. P. M. S. Neves, A. C. Tomé, A. M. S. Silva, J. A. S. Cavaleiro, C. Engellard, K. Hombrecher, E. Melo
	University of Aveiro and Lab. Micro-Heterogeneous Systems, Portugal;Universität zu Lübeck, Germany

PO-471	SYNTHESIS OF HETEROCYCLIC ANTIOXIDANTS
	David W.BROWN, AleyammaNINAN, AND Malcolm SAINSBURY
	University of Bath, UK

PO-472	SYNTHESIS OF g-LACTONES
	M. L. A. SILVA; J. M. L. RODILLA
	University of Beira Interior, Portugal

PO-473	Ring Opening and Rearrangement of N-(a-Aminoacyl) aziridine-2-imides
	Giuliana Cardillo, Luca Gentilucci and Alessandra Tolomelli
	Università di Bologna and C.S.F.M., Italy

PO-474	Aziridines in the Synthesis of Optically Pure β-Hydroxy a-Amino Acid-Containing Dipeptides
	Giuliana Cardillo, Luca Gentilucci and Alessandra Tolomelli
	Università di Bologna and C.S.F.M., Italy

PO-475	Synthesis of C-Glycosyl Amino Acids and C-Glycopeptides
	Sharn Ramaya, Timothy Gallagher, Alan J. Pearce and Simon N. Thorn
	University of Bristol, UK

PO-476	radical MEDIATED SYNTHESIS OF C-Glycosides OF 2‑AMINOSUGARS
	Kenneth E. WALSH, Raul SANMARTIN, Daryl WALTER and Timothy GALLAGHER
	University of Bristol and Roche Discovery Welwyn, UK

PO-477	THE CYCLOADDITION OF 5H,7H-THIAZOLO[3,4-c]OXAZOLIUM-1-OXIDES: INTRA- AND INTERMOLECULAR
	Teresa M. V. D. PINHO E MELO, Maria. I. L. SOARES, António M. d'A. ROCHA GONSALVES
	Universidade de Coimbra, Portugal

PO-478	HALIDE DISPLACEMENT OF HALO-2H-AZIRINES FOR THE SYNTHESIS OF NEW DERIVATIVES
	Cláudia S. J. LOPES, Teresa M. V. D. PINHO E MELO, António M. d'A. ROCHA GONSALVES
	Universidade de Coimbra, Portugal

PO-479	Ketone Analogues of Tropane AlkAloids
	Mustafa Tavasli and David O'Hagan
	University of Durham, UK

PO-480	NOVEL SOLID-STATE REACTIONS OF ACYLATED AMINOPYRAZOLES
	Iain C. Clelland, Hamish McNab and Simon Parsons
	The University of Edinburgh, U.

PO-481	New catalytic low-pressure gas-phase routes to functionalised heteroaromatic compounds
	Jacqui.A. Campbell, Graham McDougaldand Hamish McNab
	Zeneca plc, South Bank Laboratories The University of Edinburgh, UK

PO-482	A NOVEL APPROACH TO BIPYRIDINES BY DOUBLE INTRAMOLECULAR DIELS–ALDER REACTION
	Nicholas BUSHBY, Christopher J. MOODY
	University of Exeter, UK

PO-483	ELECTRONIC STRUCTURE OF THE HETEROCYCLES AND THEIR ORGANOMETALLIC SPECIES
	Alexander P. Sadimenko
	University of Fort Hare, Republic of South Africa

PO-484	Use of 1-Phosphono-2-aza-1,3-dienes for the synthesis of Azaheterocyclic Phosphonates
	Christian Stevens, Marc Gallant and Norbert De Kimpe
	University of Gent, Belgium

PO-485	SYNTHESIS OF 3-ALKYL- AND 3-ARYL- 2-AZA-ANTHRAQUINONES
	Bart KESTELEYN, Tuyen NGUYEN Van, Norbert DE KIMPE
	University of Gent, Belgium

PO-486	BIOTRANSFORMATIONS OF ANALOGUES OF BIOSYNTHETIC INTERMEDIATES INTO TROPANE ALKALOID ANALOGUES
	Henry D. Boswell, David J. Robins, Richard J. Robins and Nicholas J. Walton
	University of Glasgow and Institute of Food Research, Norwich Laboratory, UK

PO-487	A NOVEL SULFUR CONTAINING BUTTERFLY COMPOUND
	Jarno KANSIKAS and Kaija SIPILÄ
	University of Helsinki, Finland

PO-488	A FACILE METHOD FOR THE PREPARATION OF 5-N,N-SUBSTITUTED-2-CARBOXYINDOLES ON SOLID SUPPORT
	Jan Tois, Robert Franzén, Petteri Rummakko and Jyrki Taskinen
	University of Helsinki, Finland

PO-489	SOME UNUSUAL CONJUGATE ADDITIONS TO CHROMONES
	Dan E. Daia, G. Elena Daia, Christopher D. Gabbutt, John D. Hepworth and B. Mark Heron
	The University of Hull, UK

PO-490	THE ZAV’YALOV PYRROLE SYNTHESIS REVISITED
	Christopher D. Gabbutt, John D. Hepworth and B. Mark Heron
	The University of Hull, UK

PO-491	AN EXPEDIENT SYNTHESIS OF UNSYMMETRICALLY SUBSTITUTED N‑BENZYL-1,4-DIHYDROPYRIDINES AND N-BENZYL-1,4-DIHYDRONICOTINAMIDES.
	J.K.F. Geirsson, J.F. Johannesdottir, J. Reynisson
	University of Iceland, Iceland

PO-492	LiAlH₄ INDUCED REARRANGEMENT OF N-2-ALKYL OR ARYL-1-(2-NITROPHENYL)-1H-2-PYRROLECARBOXAMIDES INTO 1- ALKYL OR ARYL -2-(1H-2-PYRROLYL)-1H-BENZO[d]IMIDAZOLES
	Athanasios KIMBARIS, George ROTAS and George VARVOUNIS
	University of Ioannina, Greece

PO-493	HETEROCYCLIC COMPOUNDS FROM PERHALODIENES AND DITHIOLES
	Cemil Ibiş, F. Serpil Göksel, and M. Çiğdem Sayil
	University of Istanbul and Marmara Research Center, Turkey

PO-494	SYNTHESIS OF SOME NOVEL PIPERAZINE DERIVATIVES
	Nihal Yilmaz and Cemil Ibiş
	Istanbul University, Turkey

PO-495	THE SYNTHESIS OF HETEROCYCLIC COMPOUNDS FROM THE REACTIONS OF DIENES AND THIOSUBSTITUTED NITRODIENES WITH DITHIOLS
	Cemil Ibiş, Gökşin Aydinli, and M. Çiğdem Sayil
	University of Istanbul and Marmara Research Center, Turkey

PO-496	SYNTHESIS OF S,N SUBSTITUTED DIEN COMPOUNDS
	Zeliha A. Gökmen and Cemil Ibiş
	Istanbul University, Turkey

PO-497	2,2'-BIPYRIDINE-4,4'-DICARBOXYLATES OF BILE ACID ESTERS: NOVEL STEROIDAL MOLECULAR CLEFTS
	Erkki Kolehmainen, Mervi Haapala, Hannu Salo and Jari Tamminen
	University of Jyväskylä, Finland

PO-498	INTRAMOLECULAR NUCLEOPHILIC ADDITION OF CHALCOGENOLATES WITH NUCLEOPHILES
	Michael A. ABRAMOV^,, Marieke VOETS Michael L. PETROV , Wim DEHAEN
	St.Petersburg State Institute of Technology, Russia and University of Leuven, Belgium

PO-499	CYCLOADDUCTS OF 2H-1,4-OXAZIN-2-ONES WITH ALKYNES AND ALKENES AND THEIR CONVERSIONS INTO SPECIFICALLY SUBSTITUDED PYRIDINE AND PIPERIDINE DERIVATIVES
	Joeri ROGIERS, Stijn WUYTS, Frans COMPERNOLLE, Georges HOORNAERT
	Laboratorium voor Organische Synthese, K.U.Leuven, Belgium

PO-500	STEREO- AND REGIOSELECTIVITY IN DIELS ALDER REACTIONS OF PYRAZINONES WITH ETHYLENIC COMPOUNDS
	Frederik ROMBOUTS, Patrick LOOSEN, Frans COMPERNOLLE, Georges HOORNAERT
	Laboratory for Organic Synthesis, K. U. Leuven, Belgium

PO-501	SYNTHESIS OF SPECIFICALLY SUBSTITUTED TRICYCLIC PIPERIDINE ANALOGUES AS POTENTIAL SUBSTANCE P ANTAGONISTS
	Tom DE WIT, Kristof VAN EMELEN, Georges HOORNAERT, Frans COMPERNOLLE
	Laboratorium voor Organische Synthese, K.U.Leuven, Belgium

PO-502	STEREOSELECTIVE SYNTHESIS OF 2, 2, 5, 5-TETRASUBSTITUTED PIPERIDINES AND THEIR CONVERSION TO POTENTIAL SUBSTANCE P ANTAGONISTS
	X. WU, J. ROGIERS, F. COMPERNOLLE and G. HOORNAERT
	Laboratory for Organic Synthesis, K. U. Leuven, Belgium

PO-503	INTRAMOLECULAR DIELS-ALDER REACTIONS OF SUBSTITUTED 3-[2-(PROPYNYLAMINO)METHYL]-2(1H)PYRAZINONES
	Wim DE BORGGRAEVE, Kris BUYSENS, Erik VAN DER EYCKEN and Georges HOORNAERT
	University of Leuven, Belgium

PO-504	DIELS-ALDER REACTIONS OF PYRIDINE-O-QUINODIMETHANES GENERATED FROM SULFOLENEPYRIDINES
	Steven CAPPELLE, Tom GOVAERTS, Frans COMPERNOLLE, Georges HOORNAERT
	Laboratorium voor Organische Synthese, K.U.Leuven, Belgium

PO-505	INTERACTION OF 2-TRIFLUOROMETHYL- AND 2-TRICHLOROMETHYLCHROMONES WITH ETHYLENE- AND TRIMETHYLENEDIAMINES
	V. Ya. SOSNOVSKIKH, V. A. KUTSENKO, and W. DEHAEN
	Urals State University, Russian Federation and University of Leuven, Belgium

PO-506	THE USE OF THE N-NOSYL activated aziridine 1,2-DIDEOXY-1,2-IMINOMANNITOL IN THE SYNTHESIS OF MONOCYCLIC IMINOSUGARS
	Hua Mao, Koen Peeters, Frans Compernolle, Georges Hoornaert
	Laboratorium voor Organische Synthese, K. U. Leuven, Belgium

PO-507	SYNTHESIS AND SOME FURTHER TRANSFORMATIONS OF METHYL AND ETHYL 2-[2-CYANO-2-(2-PYRIDINYL)ETHENYL]-AMINO-3-DIMETHYLAMINOPROPENOATE
	Lucija Jukić and Branko Stanovnik
	University of Ljubljana, Slovenia

PO-508	SYNTHESIS AND TRANSFORMATIONS OF ETHYL PYRAZOLYLACETATES
	Bojan VERČEK, Martin ČRNUGELJ
	University of Ljubljana, Slovenia

PO-509	Stereoselective Amination of 5-Substituted g-Lactones and g-Lactams. A Convenient Route for the Preparation of g‑Substituted a-AcetylAmino-g-BUTYROLactones and g‑BUTYROLactams
	Marko Škof, Matej Kmetič, Jurij Svete, Branko Stanovnik, and Simona Golič-Grdadolnik
	University of Ljubljana, Slovenia

PO-510	PREPARATION OF NEW DIMETHYLAMINO REAGENT 3‑benzoylamino-4-dimethylamino-3-buten-2-one AND ITS FURTHER TRANSFORMATIONS
	Urška Bratušek and Branko Stanovnik
	University of Ljubljana, Slovenia

PO-511	SYNTHESIS AND TRANSFORMATIONS OF AZOMETHINE IMINES AND ENAMINES, PREPARED FROM 5,5-DIMETHYL-3-PYRAZOLIDINONE
	Cvetka Turk, Jurij Svete, and Branko StanovnIk
	University of Ljubljana, Slovenia

PO-512	SYNTHESIS AND TRANSFORMATIONS OF SOME NOVEL HETEROCYCLIC DIAZOKETONES
	Simon REČNIK, Jurij SVETE, and Branko STANOVNIK
	University of Ljubljana, Slovenia

PO-513	SYNTHESIS OF NON-CYCLIC a,β-DIDEHYDRO-a-AMINO ACID DERIVATIVES
	Lidija VRANIČAR, Slovenko POLANC, Marijan KOČEVAR
	University of Ljubljana, Slovenia

PO-514	ALKYL ARYLAMINOCARBONYLDIAZENECARBOXYLATES IN THE SYNTHESIS OF SOME HETEROCYCLES
	Roman LENARŠIČ, Marijan KOČEVAR, Slovenko POLANC
	University of Ljubljana, Slovenia

PO-515	A NEW SYNTHETIC APPLICATION OF THE MODIFIED MAILLARD REACTION : SYNTHESIS OF BICYCLIC IMIDAZOLOSUGARS
	Patrik Kolar, Andrej Petrič and Ivan Leban
	University of Ljubljana, Slovenia

PO-516	SYNTHESIS AND TRANSFORMATIONS OF ALKYL 2‑(SUBSTITUTED)AMINO-3-CYANOPROPENOATES
	Renata TOPLAK, Jurij SVETE, and Branko STANOVNIK
	University of Ljubljana, Slovenia

PO-517	Synthesis of HeteroarylAlanine derivatives
	Jurij Svete, Marko Škof, and Branko Stanovnik
	University of Ljubljana, Slovenia

PO-518	The Synthesis of Heteroarylaplysinopsin and ALKYLAMINOaplysinopsin analogs
	Gorazd Soršak, Vesna Krošelj, Lovro Selič, Jurij Svete, and Branko Stanovnik
	University of Ljubljana, Slovenia

PO-519	A Simple and Stereoselective Synthesis of Aplysinopsins and Their Analogues
	Lovro Selič, Renata Jakše, Kristina Lampič, and Branko Stanovnik^,
	LEK, Research & Development and University of Ljubljana, Slovenia

PO-520	4-ACYLHYDRAZINOMETHYLENE-2-PHENYL-5(4H)-OXAZOLONES AS SYNTHETIC INTERMEDIATES AND AS ACYLATING AGENTS
	Franc POŽGAN, Vladimir KEPE, Slovenko POLANC, Marijan KOČEVAR
	University of Ljubljana, Slovenia

PO-521	SYNTHESIS OF NITRO DERIVATIVES OF FLAVONES AND ISOFLAVONES
	Alenka Štefanič Petek, Miha Japelj
	University of Ljubljana, Slovenia

PO-522	THE SYNTHESIS AND ANTICONVULSANT ACTIVITY OF NEW 2-[1,3,4-D₂-OXADIAZOLINE]-4’-THIAZOLE DERIVATIVES
	O. Oniga, Brindusa Tiperciuc, Smaranda Oniga, Alexandra Ioanoviciu, Ioana Sandulescu, Cristina Mogosanu
	University of Medicine and Pharmacy “Iuliu Hatieganu”, Romania

PO-523	SYNTHESIS AND CHARACTERIZATION OF SOME THIAZOLYL-1,3,4-THIADIAZOLES AND THIAZOLYL-1,2,4-TRIAZOLES
	V.Zaharia, Ileana Chirtoc
	University of Medicine and Pharmacy “Iuliu Hatieganu”, Romania

PO-524	THE SYNTHESIS AND THE STUDY OF THE ANTI-INFLAMMATORY ACTIVITY OF SOME 3-N-ACETYL-2-R-5-[2’-ARYL-4’-METHYL-THIAZOLE-5’-YL]-D₂-1,3,4 – OXADIAZOLINE
	Brindusa Tiperciuc, Alina Parvu Mariana Palage, O.Oniga, , Doina Ghiran
	University of Medicine and Pharmacy “Iuliu Hatieganu”, Romania

PO-525	THE APPLICATION OF SOMMELET AND KRÖHNKE REACTIONS IN THE SERIES OF SOME 2-ARYL-5-HALOMETHYL-6-R-THIAZOLO[3,2-b][1,2,4]TRIAZOLES
	Mariana Palage, V. Zaharia, Daniela Zaharia, I.Simiti
	University of Medicine and Pharmacy “Iuliu Hatieganu”, Romania

PO-526	SYNTHESIS AND ANTIMICROBIAL ACTIVITY OF SOME NEW 2-(DITHIAZOLIL)-1,3,4-D₂-OXADIAZOLINE DERIVATIVES
	Smaranda Oniga, O. Oniga, Brindusa Tiperciuc, Mariana Palage, Ana Muresan
	University of Medicine and Pharmacy “Iuliu Hatieganu”, Romania

PO-527	SYNTHESIS, CHEMICAL, PHYSICO-CHEMICAL STUDY OF SOME 2-ARYLIDEN-HYDRAZINO-4-PHENYL-THIAZOLES WITH ANTIMICROBIAL ACTIVITY
	Mioara Coman,Cristina Bota,Adriana Comsa
	University of Medicine and Farmacy, Romania

PO-528	2-PHENYL-4-METHYL-THIAZOLE-5-YL-CARBOHYDRAZIDE AS AN INTERMEDIATE IN THE SYNTHESIS OF THIAZOLYL-1,3,4-OXADIAZOLES, THIAZOLYL-1,3,4-THIADIAZOLES AND THIAZOLYL-1,3,4-TRIAZOLES
	Doina Ghiran, Brindusa Tiperciuc, Ana Muresan, Ileana Chirtoc, N. Palibroda
	University of Medicine and Pharmacy “Iuliu Hatieganu” and Institute of Molecular and Isotopic Technology, Romania

PO-529	NOVEL BIOACTIVE HETEROCYCLES FROM SOUTHERN AUSTRALIAN MARINE ORGANISMS
	Capon, R. J. , Skene, C. E. , Ovenden, S. P. B. , Rooney, F. R. R.
	The Marine Natural Product Research Group, School of ChemistryThe University of Melbourne, Parkville, Victoria 3052, Australia.

PO-530	The Construction of Mixed Heterocalixarenes from Activated Indoles and Benzofurans
	David StC. Black, and Robert Rezaie
	The University of New South Wales, Australia

PO-531	FREE-RADICAL 4-NITROPHENYLATION OF THIENO[2,3‑b]PYRIDINE--RATIOS OF ISOMERIC DERIVATIVES FORMED.
	LeRoy H. Klemm, Timothy J. R. Weakley, and Robert D. Gilbertson
	University of Oregon, USA

PO-532	Modelling the Enantioselective Reduction of a Ketone with a Chiral BH₃-Oxazaborolidine Adduct
	Shannon L. BLACK and Cedric W. McCLELAND
	University of Port Elizabeth, South Africa

PO-533	INTRAMOLECULAR 1,5-CYCLIZATION OF PYRIDINIUM AND AZOMETHINE YLIDES GENERATED FROM ARYLCHLOROCARBENES AND SUBSTITUTED VINYLPYRIDINES OR 1-AZABUTA-1,3-DIENES AS A USEFUL APPROACH TO SUBSTITUTED INDOLIZINES AND PYRROLES
	Yuri N. Romashin, Michael T.H. Liu, Roland Bonneau
	University of Prince Edward Island, Canada and Universite de Bordeaux 1, France

PO-534	SYNTHESIS OF CARBOHYDRATES VIA ENANTIOSELECTIVE DEPROTONATION OF 1,3-DIOXAN-5-ONES
	Marek MAJEWSKI, Pawel NOWAK
	University of Saskatchewan, Canada

PO-535	REACTION OF [1,4]BENZODIOXINOPYRIDAZINES WITH NUCLEOPHILES
	Etsuo Oishi, Akira Miyashita, Ken-ichi Iwamoto
	University of Shizuoka, Japan

PO-536	A NEW METHOD FOR THE SYNTHESIS OF HETEROCYCLOPHANES
	Masayuki Sato, Ken-ichi Iwamoto, Tsunehisa Oda, Emi Murakami, Fumiaki Uehara, Kayo Sato, and Masahiko Yamaguchi
	University of Shizuoka and Tohoku University, Oabayama, Japan

PO-537	SYNTHESIS AND STEREOCHEMISTRY OF 2,3,4,5‑TETRAARYLIMIDAZOLIDINES
	V. Dryanska, I. Pashkuleva, S. Simova and S. Angelova
	University of Sofia and Bulgarian Academy of Sciences, Bulgaria

PO-538	*SYNTHESIS OF A NOVEL HEPTACYCLIC HETEROCYCLIC RING SYSTEM VIA* PHOTOCYCLIZATION. DIBENZO[*f,h]NAPHTHO[2’,1’:4,5]THIENO[2,3-c]QUINOLINE*
	Maria P. Cabal, Jiann-Kuan Luo, and Raymond N. Castle
	University of South Florida, USA

PO-539	New approaches to and chemistry of sulfur-rich heterocycles
	R. Alan Aitken, Lawrence Hill and Neil J. Wilson
	University of St. Andrews, UK

PO-540	Convenient Pyrolytic Synthesis of New Tetracyclic Heteroaromatic Ring Systems
	R. Alan Aitken and Alasdair N. Garnett
	University of St. Andrews, UK

PO-541	Novel Analogues of 1,4-Diketopyrrolo[3,4-c]pyrrole
	Colin J.H. Morton, David M. Smith
	University of St. Andrews, UK

PO-542	ROUTES TO HETEROARYLATED DIOXOPIPERAZINES
	David M. Smith and Charles R. White
	University of St. Andrews, UK

PO-543	Novel Applications of Furan Chemistry: Radical cyclisation/fragmentation versus radical Diels-Alder reactions
	Aydin Demircan and P. J. Parsons
	University of Sussex, UK and The University of Nigde, Turkey

PO-544	GENERATION OF IODONIUM YLIDES AND SYNTHESIS OF α,β‑EPOXY AND α,β-AZIRIDINO KETONES
	Masahito Ochiai, Yutaka Kitagawa, and Da-Wei Chen
	University of Tokushima, Japan

PO-545	SYNTHESES AND CRYSTAL STRUCTURE OF PENTACOORDINATE 1,3l⁵,2-OXAZAPHOSPHETIDINES
	Takayuki Kawashima, Seiji Kawa, and Naokazu Kano
	The University of Tokyo, Japan

PO-546	OPTIMIZATION OF THE STILLE CROSS-COUPLING REACTION BETWEEN a-AMINO ACID CHLORIDES AND 4-STANNYL-DERIVATIVES OF PYRIDINE. THE EFFECT OF ORTHO-SUBSTITUTION.
	Stina SAITTON and Kristina LUTHMAN
	University of Tromso, Norway

PO-547	Optical Resolution of secondary-Alcohols using 2‑Acyl-3-phenyl-l-menthopyrazole as the Enantioselective Acylating Agent
	Choji Kashima, Saori Mizuhara, Kohei Higashide, and Yukihiro Yokoyama
	University of Tsukuba, Japan

PO-548	PHOTOCHEMICAL AND RADICAL REACTIONS OF α-HALO AMIDES
	Takehiko Nishio, Hiroyuki Koyama and Takenori Miyazaki
	University of Tsukuba, Japan

PO-549	SYNTHESIS OF 2,5-BIS(SILYLATED)THIOPHENES S-MONOXIDES AND THIE DIELS-ALDER TYPE REACTIONS
	Naomichi Furukawa, Shaozhong Zhang, Ernst Horn, and Soichi Sato
	Tsukuba Advanced Research Alliance Center, Japan

PO-550	SYNTHESES AND REACTIVITIES OF ORGANO-TELLURANYL DICATIONS [8-TE-4(C4)]²⁺
	Soichi Sato, Takahiro Yamashita, Ernst Horn, and Naomichi Furukawa
	Tsukuba Advanced Research Alliance Center, Japan

PO-551	SYNTHESIS OF DIMERIC COUMARINS PHEBALIN AND THAMNOSIN
	S. Concannon, V.N. Ramachandran, and W.F. Smyth
	University of Ulster, Northern Ireland

PO-552	An effective route to N-heterocycles from β‑enaminonitriles
	Péter Nemes, Barbara Balázs, Gábor Tóth, Pál Scheiber
	University of Veterinary Science and Technical University, Budapest

PO-553	SYNTHETIC AND CONFORMATIONAL STUDIES OF 5-HYDROXYHEXAHYDROPYRIMIDINES
	Robyn. L. CRUMBIE, Julie M. LOCKE, Renate GRIFFITH and Trevor D. BAILEY
	University of Western Sydney of Chemistry and University of Wollongong, Australia

PO-554	Synthesis of Novel Indole-Fused Derivatives Based on Chloroacetamide Photochemistry.
	John B. Bremner and Henry F. Russell
	University of Wollongong, Australia and Johnson C Smith University, USA

PO-555	A RADICAL APPROACH TO POLYCYCLIC ALKALOIDS
	David A. J. WILLIAMS and Andrew F. PARSONS
	The University of York, UK

PO-556	APPLICATION OF CHIRAL LITHIUM AMIDE BASES IN THE ENANTIOSELECTIVE REARRANGEMENT OF EPOXIDES
	Simon E. DE SOUSA and Peter O'BRIEN
	The University of York, UK

PO-557	CHIRAL BASE MEDIATED DESYMMETRISATION REACTIONS: SYNTHESIS AND ENANTIOSELECTIVE REARRANGEMENT OF MESO-AZIRIDINE EPOXIDES
	Christopher D. PILGRAM and Peter O’BRIEN
	The University of York, UK

PO-558	TITANIUM AND ZIRCONIUM-MEDIATED APPROACHES TO UBSTITUTED PYRROLIDINES: TWO ENANTIOSELECTIVE SYNTHESES OF (-)-a-KAINIC ACID
	Andrew D. Campbell,Richard J. K. Taylor, Tony M. Raynham
	University of York and Roche Discovery Welwyn, UK

PO-559	NEW SPARTEINE-LIKE LIGANDS FOR ASYMMETRIC SYNTHESIS
	Justin HARRISON, Peter O‘BRIEN, David PORTER, and Neil SMITH
	University of York and SmithKline Beecham Pharmaceuticals, UK

PO-560	NEW PYRROLE DERIVATIVES BY PHOTOCHEMICAL INTRAMOLECULAR REACTION
	Nikola Basarić, Željko Marinić and Marija Šindler-Kulyk
	University of Zagreb and The Ruđer Bošković Institute, Croatia

PO-561	STEREOSELECTIVE SYNTHESIS OF PYRROLINYLTHIAZOLES
	Maxim A. MIRONOV, Maria I. KLEBAN and Vladimir S. MOKRUSHIN
	The Urals State Technical University, Russian Federation

PO-562	Nucleophilic Substitution in 5-chloro-1,2,3-thiadiazoles
	Tatiana A. POSPELOVA, Yury Yu. MORZHERIN, Tatiana V. GLUKHAREVA
	The Urals State Technical University, Russian Federation

PO-563	SYNTHESIS OF CYTOZINE ANALOGS IN THE SERIES OF 6-SUBSTITUTED-1,2,4-TRIAZIN-3(2H)-ONES
	Grigory V. Zyryanov, Тatjana L. Pilitcheva, Ilja N. Egorov
	The Urals State Technical University, Russian Federation

PO-564	Reaction of aromatic isocyanides with tertiary amines: a new method for the synthesis of indole betaines
	Maxim A. Mironov and Vladimir S. Mokrushin
	The Urals State Technical University, Russian Federation

PO-565	Reduction of 2,5-dimethylidenethiazolidine
	Yury Yu. MORZHERIN, Maria F. Kosterina, Ingrid Luyten., Wim Dehaenand Vasiliy A. Bakulev
	The Urals State Technical University, Russian Federation and University of Leuven, Belgium

PO-566	reactions of 2-(2-arylhydrazono)-2-cyano-thioacetamides with halokethones
	Natalia P. BELSKAIA, Igor V. PARAMONOV, Vasiliy A. BAKULEV
	The Urals State Technical University, Russian Federation

PO-567	DIAZO COMPOUNDS OF HETEROCYCLIC SERIES: SYNTHESIS AND REACTIVITY
	Elena V. SADTCHIKOVA, Vladimir S. MOKRUSHIN, Maxim A. BEZMATERNYKH, Oleg S. ELTSOV
	The Urals State Technical University, Russian Federation

PO-568	REACTION OF IMIDAZO-AS-TRIAZINES WITH NUCLEOPHILIC AGENTS
	Maxim A. BEZMATERNYKH, Vladimir S. MOKRUSHIN, Elena V. SADTCHIKOVA, Oleg S. ELTSOV
	The Urals State Technical University, Russian Federation

PO-569	THE SYNTHESIS OF NOVEL [1,2,3]TRIAZOLO[1,3,6]BENZOTHIADIAZEPINES
	Natalya N. Volkova, Evgeny V. Tarasov, Wim Dehaenand Vasily A. Bakulev
	The Urals State Technical University, Russian Federation and University of Leuven, Belgium

PO-570	THIENOANNULATED HETEROCYCLES. AN ACCESS TO 2-THIA-3,5,6,9-TETRAAZA- AND 2-THIA-3,5,6,7,9-PENTAAZA-BENZO[cd]AZULENE RING SYSTEMS
	S. Tumkevicius, A. Kaminskas
	Vilnius University, Lithuania

PO-571	A CONVENIENT SYNTHESIS OF NEW THIOPHENE OLIGOMERS BY STEP-BY-STEP SYNTHESIS FROM THIENYLKETONES
	Zsolt VÉGH, Daniel VÉGH
	VUCHT and Slovak Technical University, SK

PO-572	PALLADIUM-CATALYZED SYNTHESIS OF INDOLES AND CARBAZOLES
	Björn C. Söderberg, Michael R. Turner, Tricia L. Scott, Amanda K. Arrington, Shannon N. O’Neil, James A. Shriver, Stacey R. Rector, Andrew L. Criser, and Angela C. Chisnell
	West Virginia University, USA

PO-573	SYNTHESIS AND PHYSICAL PROPERTIES OF PORPHYRIN INCORPORATED FERROCENE RINGS
	Taeko Izumi, Tatsuro Kijima, Satoshi Murakami, Yasuhiko Suzuki and Shin Takagi
	Yamagata University, Japan

PO-574	REACTION OF 1,4-DIANION OF METHYL 2-THIENYL KETONE N-ETHOXYCARBONYLHYDRAZONE WITH CARBOXYLIC ACID DERIVATIVES
	Nüket Öcal, Zuhal Turgut and Şeniz Kaban
	Yıldız Technical University, Turkey

PO-575	SYNTHESIS OF SOME DIHYDRO DERIVATIVES OF 6,7-DIMETHYL-2,3-DIPHENYLQUINOXALINE VIA FORMATION OF ITS DIANION
	Şeniz Kaban, Feray Aydoğan
	Yıldız Technical University, Turkey

PO-576	SYNTHESIS OF SOME C-8 SUBSTITUTED QUINOLINES FROM SCHIFF BASES
	Nüket Öcal, Çiğdem Yolaçan, Şeniz Kaban, Leonor Y. Vargas M., Vladimir Kouznetsov
	Yıldız Technical University, Turkey and Industrial University of Santander, Colombia

PO-577	SYNTHESIS AND PROPERTIES OF 8-ARYL-3,9-DIMETHYLXANTHINES
	Shaker Youssif and Wolfgang Pfleiderer
	University of Zagazig, Egypt and University of Konstanz, Germany

PO-578	1,3-DIPOLAR CYCLOADDITION OF IMIDAZOLINE 3-OXIDES TO DIMETHYLACETYLENEDICARBOXYLATE
	Fatma Tirli Tat, Özden Özel Güven and Necdet Coşkun
	Uludağ University and Zonguldak Karaelmas University

PO-579	*HETEROCYCLIC SYNTHESIS VIA* ENAMINONES REGIOSELECTIVE SYNTHESIS OF SOME NOVEL PYRAZOLE, ISOXAZOLE, PYRIMIDINE, PYRIDO[1,2-a]BENZAMIDAZOLE AND PYRAZOLO[1,5-a]PYRIDINE DERIVATIVES**
	Zaghloul E. Kandeel, Kamal M. Dawood, and Ahmad M. Farag
	Cairo University, Egypt