Promiscuous enzyme-catalyzed regioselective Michael addition of purine derivatives to α,β-unsaturated carbonyl compounds in organic solvent
作者:Jun-Liang Wang、Jian-Ming Xu、Qi Wu、De-Shui Lv、Xian-Fu Lin
DOI:10.1016/j.tet.2009.01.056
日期:2009.3
Michael addition of purine derivatives to α,β-unsaturated carbonyl compounds could be catalyzed by d-aminoacylase amano (DA) in DMSO. The influence of reaction conditions on the Michael addition, including solvent, temperature, and enzyme concentration was systematically investigated. Then we extended this methodology to six structurally diverse purine derivatives and a variety of α,β-unsaturated carbonyl
嘌呤衍生物向α,β-不饱和羰基化合物的区域选择性迈克尔加成反应可通过DMSO中的d-氨酰基酶天冬氨酸(DA)催化。系统地研究了反应条件对迈克尔加成反应的影响,包括溶剂,温度和酶浓度。然后,我们将此方法扩展到六个结构上不同的嘌呤衍生物和各种α,β-不饱和羰基化合物。以中等至高收率选择性合成了21种迈克尔加合物。这是关于酶催化的迈克尔加成反应制备嘌呤衍生物的第一份报道。