Stereoselective Production of Dimethyl-Substituted Carbapenams via Engineered Carbapenem Biosynthesis Enzymes
作者:Refaat B. Hamed、Luc Henry、Timothy D. W. Claridge、Christopher J. Schofield
DOI:10.1021/acscatal.6b02509
日期:2017.2.3
5-carboxymethylproline synthases (CMPSs) for preparation of functionalized 5-carboxymethylproline (5-CMP) derivatives methylated at two positions (i.e., C2/C6, C3/C6, and C5/C6), including products with a quaternary center, from appropriately substituted-amino acid aldehydes and C-2 epimeric methylmalonyl-CoA. The enzymatically produced disubstituted 5-CMPs were converted by carbapenam synthetase into methylated
通过使用工程化的5-羧甲基脯氨酸合酶(CMPS)制备在两个位置甲基化的官能化的5-羧甲基脯氨酸(5-CMP)衍生物(C2 / C6,C3 / C6和C5 / C6),包括带有季中心的产品,这些产品是由适当取代的氨基酸醛和C-2差向异构的甲基丙二酰辅酶A制成的。酶法生产的双取代的5-CMP被碳青霉烯合成酶转化为甲基化的双环β-内酰胺,与未取代的碳青霉烯相比,水解稳定性明显提高。结果强调了使用改性的碳青霉烯生物合成酶生产具有改善特性的碳青霉烯。