Chemical Transformation of Protoberberines. XVII. Biomimetic Introduction of an Oxy Functionality at the C-10 Position in the Benzo(c)phenanthridine Skeleton: Synthesis of 2,3,7,8,10-Pentaoxygenated Benzo(c)phenanthridine Alkaloids, Chelilutine and Sanguilutine.
作者:Miyoji HANAOKA、Won Jea CHO、Shuji YOSHIDA、Chisato MUKAI
DOI:10.1248/cpb.39.1163
日期:——
An efficient and biomimetic introduction of an oxy functionality at the C-10 position in the benzo[c]phenanthridine skeleton was developed by regioselective oxygenation with salcomine-oxygen. This biomimetic procedure was successfully applied to a synthesis of 2, 3, 7, 8, 10-pentaoxygenated benzo[c]phenanthridine alkaloids, chelilutine (8) and sanguilutine (18), from the corresponding 2, 3, 7, 8-tetraoxygenated benzo[c]phenanthridines.
开发了一种高效且仿生的方法,通过区域选择性氧化使用salcomine-氧气,在苯并[c]菲那喹类骨架的C-10位引入氧功能团。该仿生程序成功应用于合成2, 3, 7, 8, 10-五氧化苯并[c]菲那喹类生物碱cheilutine(8)和sanguilutine(18),其原料为相应的2, 3, 7, 8-四氧化苯并[c]菲那喹。