Studies on the chemical transformations of rotenoids.<b>6</b>Synthesis and antitumor-promoting activity of benzofuro[2,3-<i>d</i>]pyridazines fused with 1,2,4-triazole, 1,2,4-triazine and 1,2,4-triazepine
作者:Shin-Ichi Nagai、Satoshi Takemoto、Taisei Ueda、Kanako Mizutani、Yasuhiro Uozumi、Harukuni Tokuda
DOI:10.1002/jhet.5570380513
日期:2001.9
[1]Benzofuro[2,3-d]pyridazines fused with 1,2,4-triazole (6 and 7), 1,2,4-triazine (8–10) and 1,2,4-tri-azepine (12) were prepared by the ring closure of 4-hydrazino-[1]benzofuro[2,3-d]pyridazine (5), derived from naturally occurring rotenone. Compounds (la and lb) exhibited significant inhibitory activity against 12-O-tetradecanoylphorbol 13-acetate (TPA)-induced Epstein-Barr virus early antigen (EBA-EA)
[1]与1,2,4-三唑(6和7),1,2,4-三嗪(8–10)和1,2,4-三-ze庚因(1,2,4-三唑)融合的苯并呋喃[2,3- d ]哒嗪12)是通过将4-肼基-[1]苯并呋喃[2,3- d ]哒嗪(5)进行闭环制备的,该化合物衍生自天然鱼藤酮。化合物(Ia和Ib)对Raji细胞中的12 - O-十四烷酰佛波醇13-乙酸盐(TPA)诱导的爱泼斯坦-巴尔病毒早期抗原(EBA-EA)活化表现出显着的抑制活性。相比之下,除了6c和8以外,稠合的[1]苯并呋喃[2,3- d ]哒嗪几乎没有活性。