Highly stereoselective total synthesis of methynolide, the aglycon of the 12-membered macrolide antibiotic methymycin. II. Kinetic acetalization and synthesis of the seco-acid.
摘要:
以 D-葡萄糖为起点,通过 i (4) (C-9-C-13) 和 ii (5) (C-1-C-8)两个区段的 Wittig-Horner 偶联,对甲氧基苄基和对甲氧基亚苄基乙缩醛保护基团的羟基官能团合成了甲炔诺酮 (1) 的仲酸 (3),这是 12 元大环内酯甲炔诺酮的缩合物,从而实现了甲炔诺酮 (1) 仲酸 (3) 的高度立体选择性合成。
Highly stereoselective total synthesis of methynolide, the aglycon of the 12-membered macrolide antibiotic methymycin. II. Kinetic acetalization and synthesis of the seco-acid.
摘要:
以 D-葡萄糖为起点,通过 i (4) (C-9-C-13) 和 ii (5) (C-1-C-8)两个区段的 Wittig-Horner 偶联,对甲氧基苄基和对甲氧基亚苄基乙缩醛保护基团的羟基官能团合成了甲炔诺酮 (1) 的仲酸 (3),这是 12 元大环内酯甲炔诺酮的缩合物,从而实现了甲炔诺酮 (1) 仲酸 (3) 的高度立体选择性合成。
Highly stereoselective synthesis of methynolide, the aglycone of the 12-membered ring macrolide methymycin, from D-glucose
作者:Yuji Oikawa、Tatsuyoshi Tanaka、Osamu Yonemitsu
DOI:10.1016/s0040-4039(00)84871-6
日期:1986.1
A highly stereoselective and efficient synthesis of methynolide, the aglycone of 12-membered macrolide methymycin, was achieved from of C1–C8 and C9–C13 segments synthesized from D-glucose by employing some stereoselective reactions and benzyl-type protectinggroups.