作者:Nawaf Al-Maharik、Ilpo Mutikainen、Kristiina Wähälä
DOI:10.1055/s-2000-6351
日期:——
Derivatives of the isoflavones daidzein and genistein, carrying a carboxyalkyl attachment at C-2 were prepared by cyclization of unprotected 2,4,4′-trihydroxy- or 2,4,4′,6-tetrahydroxydeoxybenzoin in the presence of a number of 1,Ï-alkanedicarboxylic acid monoester monochlorides, K2CO3 and a phase-transfer catalyst in dry acetone. Hydrolysis under basic conditions of the resulting 2-(Ï-alkoxycarbonylalkyl)isoflavones gives the title compounds, useful for developing RIA techniques for the analysis of the parent isoflavones.
将雌激素大豆黄素和大豆黄苷的衍生物,即在C-2位上带有羧基烷基的大豆黄素和大豆黄苷的制备方法,是通过将未保护的2,4,4'-三羟基或2,4,4',6-四羟基脱氧苯甲酸在含有一系列1,ω-烷二羧酸单酯单氯化物、碳酸钾和相转移催化剂的干燥丙酮中进行环化得到的。在碱性条件下对所得的2-(ω-烷氧羰基烷基)异黄酮进行水解,得到标题化合物,这些化合物对于开发用于分析母体异黄酮的RIA技术非常有用。