TETRACYCLIC COMPOUNDS FROM 1-OXO-1,2,3,4,5,6-HEXAHYDROCYCLOOCTA[b]INDOLE. SYNTHESIS OF OXAZOLO[4'5':8,7]CYCLOOCTA[b]INDOLES
作者:T. Vandana、K. Velumani、K.J. Rajendra Prasad
DOI:10.1515/hc.2003.9.3.299
日期:2003.1
cyclooctane ring fused with indoles known as iprindoles have antidepressant activities. This fact has aroused the interest in devising a method to synthesise cyclooctane ring fused with indoles. l-Hydroxyimino-l,2,3,4,5,6-hexahydrocycloocta[6] indoles 5 were prepared from 1 -oxo-1,2,3,4,5,6-hexahydrocycloocta[0]indoles 3f which served as synthons for the preparation of oxazoIo[4'5':8,7]cycloocta[6] indoles
Japp-Klingmann 方法用于重氮化苯胺衍生物和 2-羟基亚甲基环辛酮 2 以获得环辛烷-r,2'-二酮-1'-芳基腙3,其在使用肯特试剂酸环化后得到1-氧代-l,2,3,4 ,5,6六氢环辛[6]吲哚4。这些在吡啶中用盐酸羟氨处理得到相应的l-羟基亚氨基-1,2,3,4,5,6-六氢环辛[6]吲哚5。另外5与乙酰基反应在室温下氯化得到恶唑并[4'5':8,7]环辛[i]吲哚 6. 引入 氮杂环化合物在活细胞的代谢中起着至关重要的作用,活细胞在自然界中广泛分布,对生命至关重要. 据报道,许多吲哚衍生物具有优良的药用特性,如抗菌、抗真菌、抗肿瘤、抗炎、抗结核活动。与吲哚稠合的环辛烷环也被称为 iprindole 具有抗抑郁活性。这一事实引起了人们对设计一种合成与吲哚稠合的环辛烷环的方法的兴趣。l-羟基亚氨基-1,2,3,4,5,6-六氢环辛[6]吲哚5由1-氧代-1,2,3,4,5,