Works matching IS 0022152X AND DT 1990 AND VI 27 AND IP 4
Results: 67
Synthesis and chemical reactivity of c-5 substituted 6,7-bis-(hydroxymethyl)-1 H-pyrrolizine biscarbamate tumor inhibitors.
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- Journal of Heterocyclic Chemistry, 1990, v. 27, n. 4, p. 1025, doi. 10.1002/jhet.5570270440
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One step synthesis of pyrimido[1,2- a][1,8]naphthyridinones, pyrido[1,2-a]pyrimidinones and 1,8-naphthyridinones. Antihypertensive agents. V.
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- Journal of Heterocyclic Chemistry, 1990, v. 27, n. 4, p. 881, doi. 10.1002/jhet.5570270411
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Synthesis of 17β-hydroxy-1′- H-5α-androst-2-eno[3,2- b]pyrrole and 17β-hydroxy-1′- H-5α-androst-3-eno[3,4- b]pyrrole from O-(2-hydroxyethyl)ketoxime precursors.
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- Journal of Heterocyclic Chemistry, 1990, v. 27, n. 4, p. 1091, doi. 10.1002/jhet.5570270451
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Furan derivatives. Part 12.
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- Journal of Heterocyclic Chemistry, 1990, v. 27, n. 4, p. 941, doi. 10.1002/jhet.5570270422
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Transaminations of enaminones:A Synthesis of tricyclic, N-aryl, 1,2,3-triazole-fused pyridones.
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- Journal of Heterocyclic Chemistry, 1990, v. 27, n. 4, p. 1135, doi. 10.1002/jhet.5570270462
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Novel syntheses of dihydroxanthyletin and dihydroseselin derivatives.
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- Journal of Heterocyclic Chemistry, 1990, v. 27, n. 4, p. 995, doi. 10.1002/jhet.5570270433
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Syntheses of 6-fluoro-7-piperazin-1-yl-9-cyclopropyl-2,3,4,9-tetrahydroisothiazolo[5,4- b]quinoline-3,4-dione and 6-fluoro-7-piperazin-1-yl-9- p-fluorophenyl-2,3,4,9-tetrahydroisothiazolo[5,4- b]quinoline-3,4-dione.
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- Journal of Heterocyclic Chemistry, 1990, v. 27, n. 4, p. 839, doi. 10.1002/jhet.5570270404
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Synthetic routes to 2-(2-benzofuranyl)benzoic acids and their cyclization into benz[6]indeno[2,1-d]furan-10-ones.
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- Journal of Heterocyclic Chemistry, 1990, v. 27, n. 4, p. 1047, doi. 10.1002/jhet.5570270444
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Synthesis of fluorantheno[1,2-b]thiophene and fluorantheno[3,2-b]thiophene, isosteres of benzofluoranthenes.
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- Journal of Heterocyclic Chemistry, 1990, v. 27, n. 4, p. 899, doi. 10.1002/jhet.5570270415
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N-Amination of 3-amino-1,2,4-triazole with hydroxylamine- O-sulfonic acid: Synthesis of 1,5-diamino-1,2,4-triazole.
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- Journal of Heterocyclic Chemistry, 1990, v. 27, n. 4, p. 1109, doi. 10.1002/jhet.5570270455
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Synthesis of novel 1 H-imidazo[5,1- B][3]benzazepine-1,3(2 H)-dione and pyrimido[6,1- B][3]benzazepine-1,3,4(2 H)-trione.
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- Journal of Heterocyclic Chemistry, 1990, v. 27, n. 4, p. 963, doi. 10.1002/jhet.5570270426
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Porphyrins meso-substituted with phenanthrene and 1,10-phenanthroline.
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- Journal of Heterocyclic Chemistry, 1990, v. 27, n. 4, p. 1161, doi. 10.1002/jhet.5570270466
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One-step methods to prepare cryptands and crowns containing reactive functional groups.
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- Journal of Heterocyclic Chemistry, 1990, v. 27, n. 4, p. 1011, doi. 10.1002/jhet.5570270437
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Heterocyclic photorearrangements. Photoinduced rearrangement of 3-styryl-1,2,4-oxadiazoles.
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- Journal of Heterocyclic Chemistry, 1990, v. 27, n. 4, p. 861, doi. 10.1002/jhet.5570270408
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Synthesis and reaction of methylbenzo[a]quinolizinium salts.
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- Journal of Heterocyclic Chemistry, 1990, v. 27, n. 4, p. 1073, doi. 10.1002/jhet.5570270448
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An approach towards the synthesis of 4-phenyl-5-arylimino-δ<sup>2</sup>-1,2,3,4-thiatriazolines.
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- Journal of Heterocyclic Chemistry, 1990, v. 27, n. 4, p. 923, doi. 10.1002/jhet.5570270419
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An alternate synthesis, x-ray crystal structure and p388 activity of 1,2-bis(dibenzophospholyl-1)ethane.
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- Journal of Heterocyclic Chemistry, 1990, v. 27, n. 4, p. 1123, doi. 10.1002/jhet.5570270459
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7,10A-Methanocycloocta[ c,d]indazoles: Diisophoranes incorporating the pyrazole ring system.
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- Journal of Heterocyclic Chemistry, 1990, v. 27, n. 4, p. 871, doi. 10.1002/jhet.5570270410
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Synthesis and stereochemistry of rac.- trans-tetrahydro-6-hydroxy-7-(4-methoxyphenyl)-1,4-thiazepin-5(2 H)-one.
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- Journal of Heterocyclic Chemistry, 1990, v. 27, n. 4, p. 1085, doi. 10.1002/jhet.5570270450
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Furan derivatives. part 11 [1]. on substituent effects in the synthesis of 3,4,5,6-tetrahydrocyclohepta[ cd]benzofurans.
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- Journal of Heterocyclic Chemistry, 1990, v. 27, n. 4, p. 935, doi. 10.1002/jhet.5570270421
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Potential antitumor agents. IV. Pyrrole analogues of oncodazole.
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- Journal of Heterocyclic Chemistry, 1990, v. 27, n. 4, p. 1131, doi. 10.1002/jhet.5570270461
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Studies on the chemistry of O,N- and S,N-containing heterocycles. 12 [1]. Investigations on the synthesis of tricyclic 1,5-benzoxazepines.
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- Journal of Heterocyclic Chemistry, 1990, v. 27, n. 4, p. 991, doi. 10.1002/jhet.5570270432
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The synthesis of 6- C-substituted 9-methoxymethylpurine derivatives.
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- Journal of Heterocyclic Chemistry, 1990, v. 27, n. 4, p. 835, doi. 10.1002/jhet.5570270403
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Synthesis of some N-[pyridyl(phenyl)carbonylamino]-alkyl-1,2,3,6-tetrahydropyridines.
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- Journal of Heterocyclic Chemistry, 1990, v. 27, n. 4, p. 1041, doi. 10.1002/jhet.5570270443
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Preparation of large macrocyclic tetra-amines consisting of a methylene backbone and a cyclophane type skeleton.
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- Journal of Heterocyclic Chemistry, 1990, v. 27, n. 4, p. 893, doi. 10.1002/jhet.5570270414
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Synthesis of 3,4,6-trisubstituted cinnolines by intramolecular wittig reaction of ortho-carbonyl substituted arylazomethylenetriphenylphosphoranes.
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- Journal of Heterocyclic Chemistry, 1990, v. 27, n. 4, p. 1103, doi. 10.1002/jhet.5570270454
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Saturated heterocycles, 162 [1]. synthesis and steric structures of 3,4-disubstituted 1,6,7,11b-tetrahydropyrimido[6,1-a]isoquinolin-2-ones.
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- Journal of Heterocyclic Chemistry, 1990, v. 27, n. 4, p. 957, doi. 10.1002/jhet.5570270425
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A New method for the synthesis of 4-oxo-4,5-dihydrofuro[3,2- c]quinoline.
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- Journal of Heterocyclic Chemistry, 1990, v. 27, n. 4, p. 1159, doi. 10.1002/jhet.5570270465
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4,4′-Coupled bis(isoquinolines).
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- Journal of Heterocyclic Chemistry, 1990, v. 27, n. 4, p. 1007, doi. 10.1002/jhet.5570270436
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Reaction of 3-methylindole and 2,3-dimethylindole with dimethyl acetylenedicarboxylate using boron trifluoride-diethyl ether catalysis.
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- Journal of Heterocyclic Chemistry, 1990, v. 27, n. 4, p. 855, doi. 10.1002/jhet.5570270407
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Synthesis of certain 1,2,4-triazole nucleoside derivatives.
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- Journal of Heterocyclic Chemistry, 1990, v. 27, n. 4, p. 1063, doi. 10.1002/jhet.5570270447
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Regioselective synthesis of trifluoromethylated pyrazoles by selective protection of trifluoromethyl-β-diketones.
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- Journal of Heterocyclic Chemistry, 1990, v. 27, n. 4, p. 919, doi. 10.1002/jhet.5570270418
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Synthesis of isoxazolo[2,3- a]quinoxalines and pyrrolo[1,2- a]quinoxalines by 1,3-dipolar cycloaddition reaction.
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- Journal of Heterocyclic Chemistry, 1990, v. 27, n. 4, p. 1119, doi. 10.1002/jhet.5570270458
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Synthesis of some fused triazoloquinolines.
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- Journal of Heterocyclic Chemistry, 1990, v. 27, n. 4, p. 981, doi. 10.1002/jhet.5570270429
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Synthesis of isoxazolo[4,5-d]pyridazin-4(5 H)-ones and 4-acyl-5-hydroxy-3(2 H)-pyridazinones.
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- Journal of Heterocyclic Chemistry, 1990, v. 27, n. 4, p. 927, doi. 10.1002/jhet.5570270420
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On the synthesis of thieno[3,2-c]quinoline N-oxide and thieno-[3,2- C]isoquinoline N-oxide. The nmr spectra of the six isomeric thieno-fused quinoline and isoquinoline N-oxides.
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- Journal of Heterocyclic Chemistry, 1990, v. 27, n. 4, p. 1127, doi. 10.1002/jhet.5570270460
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Acidity constants of benzimidazolium ketone and pyridinium aldehyde hydrates.
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- Journal of Heterocyclic Chemistry, 1990, v. 27, n. 4, p. 987, doi. 10.1002/jhet.5570270431
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A Facile synthesis of 3-alkylthio-(or arylthio-)pyridines and 3,5-bis(alkylthio)pyridines.
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- Journal of Heterocyclic Chemistry, 1990, v. 27, n. 4, p. 831, doi. 10.1002/jhet.5570270402
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NMR Determination of absolute configurations in 2-alkylthiazolidine-4-carboxylic acids.
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- Journal of Heterocyclic Chemistry, 1990, v. 27, n. 4, p. 1035, doi. 10.1002/jhet.5570270442
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A New and simple synthesis of 2-aryl-4,9-dihydrocyclohepta[ b]pyran-4,9-diones.
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- Journal of Heterocyclic Chemistry, 1990, v. 27, n. 4, p. 891, doi. 10.1002/jhet.5570270413
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Synthesis of 1,2,4-triazolo[4′,3′:1,6]pyridazino[4,5- b]quinoline derivatives.
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- Journal of Heterocyclic Chemistry, 1990, v. 27, n. 4, p. 1099, doi. 10.1002/jhet.5570270453
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Saturated heterocycles, part 161 [1]. Synthesis of 2-hydroxycycloalkyl-substituted 1,3,4-oxadiazoles, 1,3,4-thiadiazoles and 1,2,4-triazoles.
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- Journal of Heterocyclic Chemistry, 1990, v. 27, n. 4, p. 951, doi. 10.1002/jhet.5570270424
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Methyltriazolocoumarins: New furocoumarin isosters as potential photochemotherapeutic agents.
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- Journal of Heterocyclic Chemistry, 1990, v. 27, n. 4, p. 1153, doi. 10.1002/jhet.5570270464
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The synthesis of benzofuroquinolines. VIII. Some halobenzofuro[2,3- c]quinoline derivatives.
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- Journal of Heterocyclic Chemistry, 1990, v. 27, n. 4, p. 1003, doi. 10.1002/jhet.5570270435
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Temperature-dependent reaction of 1,4,6-triaminopyrimidine-2(1 H)-thiones with vilsmeier reagent. formation of [1,2,4]triazolo[1,5- c]pyrimidin-5(6 H)-ones.
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- Journal of Heterocyclic Chemistry, 1990, v. 27, n. 4, p. 851, doi. 10.1002/jhet.5570270406
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1,3-Dipolar cycloadditions of alkyl azides with picryl isothiocyanate:Isolation of stable monoadducts.
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- Journal of Heterocyclic Chemistry, 1990, v. 27, n. 4, p. 1059, doi. 10.1002/jhet.5570270446
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Synthesis and In Vivo antitumor and antiviral activities of 2′-deoxyribofuranosyl and arabinofuranosyl nucleosides of certain purine-6-sulfenamides, sulfinamides and sulfonamides.
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- Journal of Heterocyclic Chemistry, 1990, v. 27, n. 4, p. 909, doi. 10.1002/jhet.5570270417
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Synthesis of pyrrolo[1,2- a]quinoxalines by 1,3-dipolar cycloaddition reaction. An additional reaction mechanism via an aziridine intermediate.
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- Journal of Heterocyclic Chemistry, 1990, v. 27, n. 4, p. 1115, doi. 10.1002/jhet.5570270457
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Synthesis of 3,9b-dihydro-5 H-pyrrolo[2,1- a]isoindoles and 3,5,6,10b-tetrahydropyrrolo[2,1- a]isoquinolines with 1,3-dipolar cycloaddition reactions.
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- Journal of Heterocyclic Chemistry, 1990, v. 27, n. 4, p. 975, doi. 10.1002/jhet.5570270428
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Methyl 2-benzoylamino-3-dimethylaminopropenoate in the synthesis of fused pyranones. The synthesis of derivatives of tetrahydro-2 H-1-benzopyran-2-one, isomeric 2 H-naphtho[1,2- b]pyran-2-one and 3 H-naphtho[2,1- b]pyran-3-one, pyrano[3,2- c]benzopyran-2,5-dione, and 7 H-pyrano[2,3- d]pyrimidin-7-one
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- Journal of Heterocyclic Chemistry, 1990, v. 27, n. 4, p. 1021, doi. 10.1002/jhet.5570270439
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