A model for the enzyme-catalyzed, coenzyme B12-dependent interconversion of β-methylaspartate with glutamate
作者:Paul Dowd、Soo-Chang Choi、Francis Duah、Christopher Kaufman
DOI:10.1016/s0040-4020(01)81721-x
日期:1988.1
A novel rearrangement promoted by vitamin B12s of diethyl 1-keto-2-bromomethyl-2-methylsuccinate 10 to diethyl 4-methyl-2-ketoglutarate 11 has been discovered. This can serve as a partial model for the coenzyme B12 dependent enzyme catalyzed interconversion of β-methylaspartate and glutamate. The Schiff base corresponding to 10 does not react with vitamin B12s , but it does rearrange readily under
已经发现由1-乙基-2-酮-2-溴甲基-2-甲基琥珀酸二乙酯10的维生素B 12s促进了4-甲基-2-酮戊二酸二乙酯11的新的重排。这可以用作辅酶B 12依赖性酶催化的β-甲基天冬氨酸和谷氨酸的相互转化的部分模型。对应于10的席夫碱不与维生素B 12s反应,但是当用氢化三正丁基锡处理时,它在自由基条件下确实很容易重排。