共查询到20条相似文献,搜索用时 15 毫秒
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V. L. Gein E. B. Levandovskaya V. N. Vichegjanina 《Chemistry of Heterocyclic Compounds》2010,46(8):931-933
It was found that adducts of 3'-aroyl-4'-hydroxyspiro[indole-3,2'-furan]-2,5'(1H)-diones with tetramethylguanidine are formed
when equimolar amounts of methyl aroylpyruvates, isatin, and N,N,N',N'-tetramethylguanidine are heated briefly in dioxane. 相似文献
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Synthesis of 1-(2- or 3-thienylmethyl)methyl)pyrrole and some derivatives are described from halogenomethylthiophenes. The intramolecular cyclisation of carboxylic acid 19 and 20 leads to pyrrolothienopyridines 22 and 23. On the other hand azide-aldehydes 29 and 30 in aqueous acid mixture gave the pyrrolo[1,2a]thieno[2,3-e][1,4]diazepine. 相似文献
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The reduction of 1-[3-(thienyl-2-carbonitrile)]pyrrole, formed by condensation of 3-aminothiophene-2-carbonitrile with 2,5-dimethoxytetrahydrofuran, gave 1-[3-(thienyl-2-aminomethyl)]pyrrole. This compound was found to be a convenient intermediate for the preparation of 4-aryl-5,6-dihydro-4H-pyrrolo[1,2-a]thieno-[2,3-f][1,4]diazepines which was accomplished by two different synthetic routes. 相似文献
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Muratov A. V. Eresko A. B. Tolkunov V. S. Tolkunov S. V. 《Russian Journal of Organic Chemistry》2019,55(3):345-350
Russian Journal of Organic Chemistry - A number of new 1-substituted 5,10-dihydro[1,2]diazepino[4,5-b]indole-4(3H)-ones were synthesized, and their structural modification was performed to obtain... 相似文献
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A two-step selenocyclisation-oxidative deselenaton sequence was used to establish the 3a-hydroxy-pyrrolo[2,3-b]indole core; these tricycles were used as effective precursors to 10b-hydroxy-pyrazino[1',2':1,5]pyrrolo[2,3-b]indole-1,4-diones. 相似文献
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We have synthesized pyrrolo[1,2-α][1,4]benzodiazepine 6 and pyrrolo[2,1-c][1,4]benzodiazocines 12 and 13 from the corresponding 1-arylpyrrole 1d and 1-benzylpyrroles 7a and 7b by routes involving four and five steps, respectively. 相似文献
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The title compounds were synthesized from 3-[bis(2-hydroxyethyl)amino]quinolin-2(1H)-one 11a and 3-[bis(2-hydroxyethyl)amino]pyridin-2(1H)-one 18 respectively. The preparation involved a tandem chlorination/cyclization reaction. 相似文献
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Sergey A. Lakatosh 《Tetrahedron》2005,61(8):2017-2020
The mechanism of cyclization of 3-(di)alkylamino-4-(indol-1-yl)maleimides to diazepine[1,4] derivatives was elucidated using deuterium labeled precursors. 相似文献
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Mnika Szab Jzsef Kksi Lszl
rfi Attila Kovcs Istvn Hermecz 《Journal of heterocyclic chemistry》1997,34(1):21-25
3H,7H-[1,4]Diazepino[3,4-b]quinazolone-3,7-diones 9, 11 were synthesized starting from 2-(1-bromo-ethyl)quinazolin-4(3H)-ones 3 and 17 via 2-[1-(4-methoxyphenylamino)ethyl]quinazolin-4(3H)-ones 4 and 18. Cyclization of 3-[2-(1-bromoethyl)-4-oxo-3,4-dihydroquinazolin-3-yl)propionic acid 14 by the action of triethylamine provided the first representative of the tricyclic 7H-[1,4]oxazepino[3,4-b]quinazoline-3,7-dione system, compound 15. The new tricyclic derivatives 9, 11 and 15 are characterized by uv, ir and 1H nmr spectroscopy. 相似文献
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S C Kuo S Y Tsai H T Li C H Wu K Ishii H Nakamura 《Chemical & pharmaceutical bulletin》1988,36(11):4403-4407
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E. A. Sidorova E. S. Kostenko I. S. Arustamova E. A. Kaigorodova L. D. Konyushkin 《Chemistry of Heterocyclic Compounds》2011,47(3):294-301
The reactions of 2-aminonicotinamides with triethyl orthoformate, carboxylic acids chlorides, aldehydes, and 2-formylbenzoic
acid were studied. As a result pyrido[2,3-d]pyrimidin-4(1H)-ones, 2,3-dihydropyrido[2,3-d]pyrimidin-4(1H)-ones, and 5,7,11b,12-tetrahydropyrido[2',3':4,5]pyrimido- [2,1-a]isoindole-5,7-diones were obtained. 相似文献
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Fedorov A. E. Rodinovskaya L. A. Shestopalov A. M. Sigeev A. S. 《Russian Chemical Bulletin》2021,70(2):394-405
A convenient method was developed for the combinatorial synthesis of substituted (5aS)-2-benzylthio-3-cyano-4,5a,6,7,8,10-hexahydro-5H-pyrrolo[1,2-a]thieno[3,2-e][1,4]-diazepine-5,10-diones. The structure and the most probable conformation of (5aS)-2-benzylthio-3-cyano-4,5a,6,7,8,10-hexahydro-5H-pyrrolo[1,2-a]thieno[3,2-e][1,4]diazepine-5,10-dione in solution was established by NMR spectroscopy and calculations using the Gaussian program.
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Dong Han Kim 《Journal of heterocyclic chemistry》1980,17(7):1647-1648
Synthesis of (4S,9aS)-hexahydro-4-methyl-1H,5H-pyrrolo[2,1-c][1,4]thiazepine-1,5-dione, an orally active potent angiotensin converting enzyme inhibitor is described. 相似文献