Synthesis of a compound having the essential structural unit for the hetisine-type of aconite alkaloids
摘要:
A hexacyclic compound 1, which carries an almost full structure of the hetisine skeleton lacking only the six-membered ring with an exo methylene group. was synthesized by applying an acetal-ene reaction on 5 for the bond formation of C-14 and C-20 as well as stereoselective hydrocyanation reaction on 7 for construction of the azabicyclo ring system. (C) 2002 Elsevier Science Ltd. All rights reserved.
Synthetic study of hetisine-type aconite alkaloids. Part 1: Preparation of tetracyclic intermediate containing the C14–C20 bond
作者:Hideaki Muratake、Mitsutaka Natsume
DOI:10.1016/j.tet.2006.04.084
日期:2006.7
Full details for the totalsynthesis of (±)-nominine, a hetisine-type aconite alkaloid, are presented in three parts. Here (part1), we describe the preparation of the key tetracyclic intermediate 6. Our palladium-catalyzed intramolecular α-arylation was adopted for preparation of the intermediate 4 with an angular formyl group. An acetal–ene reaction was then employed for C14–C20 bond formation to
Synthesis of a compound having the essential structural unit for the hetisine-type of aconite alkaloids
作者:Hideaki Muratake、Mitsutaka Natsume
DOI:10.1016/s0040-4039(02)00453-7
日期:2002.4
A hexacyclic compound 1, which carries an almost full structure of the hetisine skeleton lacking only the six-membered ring with an exo methylene group. was synthesized by applying an acetal-ene reaction on 5 for the bond formation of C-14 and C-20 as well as stereoselective hydrocyanation reaction on 7 for construction of the azabicyclo ring system. (C) 2002 Elsevier Science Ltd. All rights reserved.