Stereoselective reductase-catalysed deoxygenation of sulfoxides in aerobic and anaerobic bacteria
作者:Derek R. Boyd、Narain D. Sharma、Alistair W. T. King、Steven D. Shepherd、Christopher C. R. Allen、Robert A. Holt、Heather R. Luckarift、Howard Dalton
DOI:10.1039/b313714g
日期:——
reductase-catalysed deoxygenations of sulfoxides, was found. The deoxygenations proceeded simultaneously, with the expected dioxygenase-catalysed asymmetric sulfoxidation of sulfides, during some biotransformations with the aerobic bacterium Pseudomonas putida UV4. Stereoselective reductase-catalysed asymmetric deoxygenation of racemic alkylaryl, dialkyl and phenolic sulfoxides was observed, without evidence
找到了直接和间接的证据,证明了亚砜有预料不到的立体选择性还原酶催化的脱氧作用。在需氧细菌恶臭假单胞菌UV4的一些生物转化过程中,脱氧同时进行,预期的双加氧酶催化的硫化物不对称硫氧化。使用厌氧细菌菌株,观察到立体选择性还原酶催化的外消旋烷基芳基,二烷基和酚亚砜的不对称脱氧反应,而没有逆向硫氧化反应的迹象。从厌氧细菌Citrobacter braakii DMSO 11的完整细胞中获得的纯化的二甲基亚砜还原酶,从相应的外消旋物中得到对映体纯的烷基芳基亚砜和硫代亚磺酸盐样品。