to organic synthesis of substituted benzopyranocoumarin, which is important because it is a probable HIV protease inhibitor. The reaction of α,β-unsaturated derivatives of coumarins with catechol or 1,4-hydroquinones was catalyzed using laccase in an aqueous medium. Quinones, generated in situ by the oxidation of the corresponding catechol or 1,4-hydroquinones, underwent a dominoreaction with chalcones
摘要 本研究为取代苯并吡喃香豆素的有机合成提供了一种简单方便的途径,这很重要,因为它可能是一种 HIV 蛋白酶抑制剂。香豆素的α,β-不饱和衍生物与儿茶酚或1,4-氢醌的反应在水性介质中使用漆酶催化。醌由相应的儿茶酚或 1,4-氢醌氧化原位生成,与查耳酮发生多米诺反应生成苯并吡喃香豆素。