An Effective Synthesis of 5,4'-Disubstituted Flavones via a Cesium Enolate Assisted Intramolecular ipso-Substitution Reaction
作者:Masato Matsugi、Masaki Takeda、Ayano Takahashi、Takahide Tazaki、Hiroto Tamura、Takayuki Shioiri
DOI:10.1248/cpb.58.1107
日期:——
A variety of 5,4′-disubstituted flavones, which are anticipated to be androgen receptor antagonists to treat diseases mediated by the androgen receptor, were synthesized. It was found that an intramolecular ipso-substitution reaction via cesium enolate using 2-fluoro-6-hydroxyacetophenone and various benzoyl chlorides was effective in the preparation of 5-hydroxy-4′-alkylflavones.
合成了一系列5,4′-二取代黄酮,预计其为雄激素受体拮抗剂,用于治疗由雄激素受体介导的疾病。研究发现,通过铯烯醇与2-氟-6-羟基乙酰苯酮和各种苯甲酰氯进行的分子内ipso取代反应在制备5-羟基-4′-烷基黄酮方面是有效的。