Total synthesis of optically active cotylenol, a fungal metabolite having a leaf growth activity. Intramolecular ene reaction for an eight-membered ring formation
摘要:
Starting from condensation of two iridoid synthons, (3S,8R)-benzyloxy-1-iriden-7-al and (3R)-7-chloro-1-iridene, cotylenol, one of the representative fusicoccane diterpenoids having 5-8-5-membered tricyclic carbon framework, is now synthesized for the first time via an eight-membered ring formation by an intramolecular ene reaction and subsequent introduction of an alpha-hydroxyl group.
Total synthesis of optically active cotylenol, a fungal metabolite having a leaf growth activity. Intramolecular ene reaction for an eight-membered ring formation
摘要:
Starting from condensation of two iridoid synthons, (3S,8R)-benzyloxy-1-iriden-7-al and (3R)-7-chloro-1-iridene, cotylenol, one of the representative fusicoccane diterpenoids having 5-8-5-membered tricyclic carbon framework, is now synthesized for the first time via an eight-membered ring formation by an intramolecular ene reaction and subsequent introduction of an alpha-hydroxyl group.
Cotylenol, one of the representative fusicoccane diterpenoids having 5-8-5-membered tricyclic carbon framework, is now synthesized for the first time via an eight-membered ring formation by an intramolecular ene reaction followed by an oxidative formation of the 8β,9α-glycol function on the central eight-membered ring.
Total synthesis of optically active cotylenol, a fungal metabolite having a leaf growth activity. Intramolecular ene reaction for an eight-membered ring formation
作者:Nobuo Kato、Hiroaki Okamoto、Hitoshi Takeshita
DOI:10.1016/s0040-4020(96)00059-2
日期:1996.3
Starting from condensation of two iridoid synthons, (3S,8R)-benzyloxy-1-iriden-7-al and (3R)-7-chloro-1-iridene, cotylenol, one of the representative fusicoccane diterpenoids having 5-8-5-membered tricyclic carbon framework, is now synthesized for the first time via an eight-membered ring formation by an intramolecular ene reaction and subsequent introduction of an alpha-hydroxyl group.