A cofactor bound loosely to the apoenzyme and readily separable from it is a coenzyme.

与脱辅基蛋松弛、易于与之分离的辅基因子为辅。

Three strategies (additive, chiral auxiliary or chiral reagent) were developed to improve the diastereoselectivity or enantioselectivity of the ylide cyclopropanation reactions.

通过添加、手性辅基、手性3种策略,分别控制反应的非对映选择性和对映选择性。