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)。