Synthesis and biological properties of some 6H-pyrido[4,3-b]carbazoles
作者:Sydney Archer、Bruce S. Ross、Livia Pica-Mattoccia、Donato Cioli
DOI:10.1021/jm00390a014
日期:1987.7
The effect of methyl substitution on the biological properties of the ellipticines was reexamined. 9-Hydroxy-6H-pyrido[4,3-b]carbazole was synthesized and shown to be devoid of antitumor activity in murine P388 lymphocytic leukemia in mice. 5-(Hydroxymethyl)-11-methyl-6H-pyrido[4,3-b]carbazole (46) and its N-methylcarbamate (48) were synthesized and their effect on macromolecular synthesis in HeLa cells
Ready Access to 6-Alkyl, 6-Phenyl, 5,6-Dialkyl, and 5-Alkyl-6-phenyl Substituted 1,2,3,4-Tetrahydroisoquinolines
作者:Peter Nussbaumer、Thomas Dechat
DOI:10.1007/s007060170045
日期:2001.9
Readily available bicyclic enone precursors were used in a novel strategy for the synthesis of 6-mono- and 5,6-disubstituted tetrahydroisoquinolines (alkyl and phenyl in position 6, hydrogen and methyl in position 5). After 1,2-addition of the respective organometallic reagents to the enones, the crude intermediate alcohols were subjected to a dehydratization/aromatization procedure using the in situ
易于获得的双环烯酮前体用于合成6-单-和5,6-二取代的四氢异喹啉(位置6的烷基和苯基,位置5的氢和甲基)的新型策略中。在将各种有机金属试剂1,2-添加到烯酮中之后,使用 原位 生成的三苯甲基阳离子对粗制中间体醇进行脱水/芳香化程序 。通过该程序获得的总产率在27%至86%之间。N-苄基保护的6- 叔 丁基-四氢异喹啉成功合成,而 5-甲基-6- t 发生部分脱烷基 丁基类似物。一些新的N-苄基四氢异喹啉被转化为相应的未保护的杂环。