Synthesis of the New Triheterocyclic System C3N-C4N-C6N. 3-Aryl-2,5,5-trimethyl-9a-methylsulfanyl-9-phenoxy-4,5,6,8,9,9a-hexahydro-3H-azeto[1,2-a]pyrrolo[3,2-c]azepin-8-ones
摘要:
The regio- and stereoselective synthesis of the cis-3-aryl-2,5,5-trimethyl-9a-methylsulfanyl-9-phenoxy-4,5,6,8,9,9a-hexahydro-3H-azeto[1,2-a]pyrrolo[3,2-c]azepin-8-ones (1) was performed. A four-step sequence, which yields are good, constitutes the first synthetic way for the preparation of the first member of this new C3N-C4N-C6N series.
Tetrahydropyrrolo[3,2-c]azepin-4-ones as a new class of cytotoxic compounds
摘要:
Pyrroloazepinones 8a-j and 9a-j were designed by structural modification of lead compound 3. These compounds were tested on five tumor cell lines to determine the role of the azeto ring and the 2-methyl substituent in the cytotoxicity of compound 3. Our results show that compounds 8a-j (R-1 = CH3) have dramatically reduced cytotoxicity, resulting from the loss of the azeto moiety of lead compound 3. By contrast, azepinones 9a-j (R-1 = 4-nitrophenyl) inhibited the proliferation of almost all cancer cell lines tested even though they lack the azeto ring. Preliminary SAR studies with these compounds revealed the importance of halogens at the para- or meta-position of the 1-phenyl moiety. Additionally, derivatives 9a (R-2 = H), 9e (R-2 = 4-F), and 9g (R-2 = 4-OMe) were selectively cytotoxic to U-251 cells. However, none of the pyrroloazepinones inhibited the enzymatic activity of CDK1/cyclin B, CDK5/p25, and GSK-3. (c) 2006 Elsevier Ltd. All rights reserved.
Synthesis and spectral properties of 6<i>H</i>-1-(2-, 3- and 4-<i>R</i>-Phenyl)-2,7,7-trimethyl-4,5,7,8-tetrahydropyrrolo[3,2-<i>c</i>]azepin-4-ones
作者:Roberto Martínez、Gema López、Avila Z. J. Gustavo
DOI:10.1002/jhet.5570320218
日期:1995.3
The preparation of novel 4,5,7,8-tetrahydropyrrolo[3,2-c]azepin-4-ones is described. The structure of all the products was corroborated by ir, mass spectrometry and 1H and 13C-nmr.
描述了新型4,5,7,8-四氢吡咯并[3,2 - c ] azepin-4-ones的制备。所有产品的结构均通过红外,质谱和1 H和13 C-nmr证实。