TCA Cycle Involved Enzymes SucA and Kgd, as well as MenD: Efficient Biocatalysts for Asymmetric C–C Bond Formation
作者:Maryam Beigi、Simon Waltzer、Alexander Fries、Lothar Eggeling、Georg A. Sprenger、Michael Müller
DOI:10.1021/ol3031186
日期:2013.2.1
Asymmetric mixed carboligation reactions of α-ketoglutarate with different aldehydes were explored with the thiamine diphosphate dependent enzymes SucA from E. coli, Kgd from Mycobacterium tuberculosis, and MenD from E. coli. All three enzymes proved to be efficient biocatalysts to selectively deliver chiral δ-hydroxy-γ-keto acids with moderate to excellent stereoselectivity. The high regioselectivity
α酮戊二酸与不同醛的不对称混合碳连接的反应从二磷酸硫胺素依赖酶的sucA进行了探索大肠杆菌,KGD从结核分枝杆菌,和修补从大肠杆菌。事实证明,所有这三种酶都是有效的生物催化剂,可以选择性地递送具有中等至优异的立体选择性的手性δ-羟基-γ-酮酸。高区域选择性是由于α-酮戊二酸作为这些酶催化反应的酰基供体保留了作用。