New Synthetic Routes to Biologically Interesting Geranylated Flavanones and Geranylated Chalcones: First Total Synthesis of (±)-Prostratol F, Xanthoangelol, and (±)-Lespeol
作者:Doo Hwan Jung、Yong Rok Lee、Sung Hong Kim
DOI:10.1002/hlca.200900251
日期:2010.4
biologically interesting geranylated flavanones and geranylated chalcones is described. Thus, the first total syntheses of the geranylated flavanones (±)‐prostratol F (1), (±)‐8‐geranyl‐3′,4′,7‐trihydroxyflavanone (2), and (±)‐6‐geranyl‐5,7‐dihydroxy‐3′,4′‐dimethoxyflavanone (3) were carried out starting from 2,4‐dihydroxyacetophenone (10) and 2,4,6‐trihydroxyacethophenone (17) in five to six steps (Schemes 2
描述了一种新的,高效的合成方法,可用于生物学上有趣的Geranylated黄烷酮和Geranylated查耳酮。因此,首先合成了香叶基黄烷酮(±)-炔雌醇F(1),(±)-8-香叶基3',4',7-三羟基黄酮(2)和(±)-6-香叶基-从2,4-二羟基苯乙酮(10)和2,4,6-三羟基苯乙酮(17)开始以5至6个步骤进行5,7-dihydroxy-3',4'-dimethoxyflavanone(3)(方案2和3)。香叶基查尔酮黄蒽酚(4),3-香叶基-2-3,3 ',4,4'-四羟基查尔酮(5),(±)-莱斯皮醇(6),以及lespeol衍生物(±) - 7 - 9合成由2,4-二羟基苯乙酮(起始10在三到四个步骤()方案2和6)。