1,6-Dihydro-3(2H)-pyridinones. VIII. Total synthesis of (.+-.)-corynantheidol and formal synthesis of (.+-.)-quinine.
作者:TAKESHI IMANISHI、MAKOTO INOUE、YASUAKI WADA、MIYOJI HANAOKA
DOI:10.1248/cpb.31.1551
日期:——
cis-3, 4-Disubstituted piperidine compounds (2 and 3) were stereoselectively prepared from benzyl 3-(1, 3-dioxolan-2-ylmethyl)-1, 2, 3, 6-tetrahydropyridine-1-carboxylate (13) via the ketone (17). A total synthesis of (±)-corynantheidol (4) and a formal synthesis of (±)-quinine (5) have also been achieved from the piperidines 2 and 3, respectively.
顺式-3, 4-二取代哌啶化合物(2 和 3)是由 3-(1,3-二氧戊环-2-基甲基)-1, 2, 3, 6-四氢吡啶-1-甲酸苄酯 (13) 通过酮 (17) 立体选择性地制备的。此外,还分别从哌啶 2 和哌啶 3 中完全合成了 (±)-corynantheidol (4),并正式合成了 (±)-quinine (5)。