The asymmetric synthesis of aryltetralin lignans: (−)-isolariciresinol dimethyl ether and (−)-deoxysikkimotoxin
作者:Don M. Coltart、James L. Charlton
DOI:10.1139/v96-011
日期:1996.1.1
(−)-deoxysikkimotoxin (7) have been carried out, in an attempt to exploit a synthetic strategy recently developed for the synthesis of (−)-deoxypodophyllotoxin (1, R1 = -CH2−, Ar = 3,4,5-trimethoxyphenyl). In so doing, a generalized method for the synthesis of aryltetralin lignans has been developed that should be applicable to a variety of substitution patterns and stereochemistries. A one-pot, 100%
已经进行了 (-)-异落叶松树脂醇二甲醚 (6) 和 (-)-deoxysikkimotoxin (7) 的全不对称合成,试图利用最近开发的合成策略来合成 (-)-deoxypodophyllotoxin (1) ,R1 = -CH2-,Ar = 3,4,5-三甲氧基苯基)。在这样做时,已经开发了合成芳基四氢化萘木酚素的通用方法,该方法应该适用于各种取代模式和立体化学。已经开发了一种一锅式 100% 区域选择性还原-内酯化程序,用于将酯 18b 转化为 (-)-脱氧锡基莫毒素,在该步骤中得到 93% 的分离产率。关键词:邻醌二甲烷,木脂素,Diels-Alder,不对称,扁桃酸。