Short Syntheses of Gabosine I and Gabosine G from δ-<scp>d</scp>-Gluconolactone
作者:Tony K. M. Shing、Hau M. Cheng
DOI:10.1021/jo0709697
日期:2007.8.1
A short synthesis of gabosine I (1) from δ-d-gluconolactone (3) in four steps, involving a one-pot TPAP oxidation−K2CO3-mediated intramolecular Horner−Wadsworth−Emmons (HWE) olefination as the key step, is described. Regioselective acetylation of the primary alcohol in gabosine I (1) then furnished gabosine G (2).
从δ-d-葡萄糖酸内酯(3)的四个步骤中短暂合成合成的Gabosine I(1),涉及一锅TPAP氧化-K 2 CO 3介导的分子内霍纳-沃兹沃思-埃蒙斯(HWE)烯化反应为关键步骤进行说明。然后在Gabosine I(1)中对伯醇进行区域选择性乙酰化,从而提供了Gabosine G(2)。