在Na2CO3的催化下,咖啡酸和B溴乙基苯在非质子性混合溶剂HMPA-CH3CN@高收率地合成天然蜂胶中主要的生物活性成分咖啡酸苯乙酯(CAPE)。为了更好地探究CAPE的构效关系和活性机理,我们首次成功地合成了单、双苯甲酰基取代的咖啡酸苯乙酯产物,同时单苯甲酰基取代产物结构通过单晶X衍射被确定。
Caffeic acid phenethyl ester (CAPE), the main biologically active component of propolis, has been successfully synthesized from caffeic acid and β-bromoethylbenzene catalyzed by Na2CO3 in a mixed solvent of HMPA-CH3CN. To better understand the struc~re-activity relationship of CAPE, phenylethyl-monobenzoylcinnamate and phenylethyl-dibenzoylcinnamate were prepared. Meanwhile, the structure of phenylethyl-monobenzoylcinnamate was confirmed by single-crystal X-ray diffiaction.