The synthesis of lupin alkaloids. II. A formal synthesis of (.+-.)-sparteine.
作者:NORIYUKI TAKATSU、MASAYO NOGUCHI、SHIGERU OHMIYA、HIROTAKA OTOMASU
DOI:10.1248/cpb.35.4990
日期:——
2-Hydroxy-3- (2'-piperidyl) quinolizidine (5), an intermediate for the synthesis of (±) -leontiformidine (1a), was converted into (±) -sparteine (7) by a three-step procedure of oxidation, Mannich reaction and deoxygenation.
2-羟基-3-(2'-哌啶基)喹啉啶(5),作为(±)-狮子形啶(1a)的合成中间体,通过氧化、曼尼希反应和脱氧化的三步过程转化为(±)-斯巴特啶(7)。