METHOD FOR IMPROVING CATALYTIC ACTIVITY

PROBLEM TO BE SOLVED: To provide a method for improving the catalytic activity of a plant processed product in an asymmetric ring-opening reaction.SOLUTION: The present invention provides a method for improving the catalytic activity of a plant processed product that promotes the reaction for obtaining a compound represented by formula (3) by the reaction between a compound represented by formula (1) and a compound represented by formula (2), the method including the step for subjecting the plant processed product to an enzyme treatment (where X is -O- or -NR-, R is a hydrogen atom and the like, R, R, Rand Rindependently represent a hydrogen atom and the like, Y is -O-, -NR- or -S-, Rand Rindependently represent a hydrogen atom and the like, where, the compound represented by formula (2) is not water or hydrogen sulfide).SELECTED DRAWING: None 【課題】不斉開環反応における植物加工物の触媒活性を向上させる方法を提供すること。【解決手段】式（１）で表される化合物と式（２）で表される化合物を反応させて式（３）で表される化合物を得る反応を促進する植物加工物の触媒活性を向上させる方法であって、植物加工物を酵素処理する工程を含む、方法。【化１】（式中、Ｘは、−Ｏ−または−ＮＲ−であり、Ｒは、水素原子等であり、Ｒ１、Ｒ２、Ｒ３およびＲ４は、それぞれ独立に、水素原子等であり、Ｙは、−Ｏ−、−ＮＲ６−または−Ｓ−であり、Ｒ５およびＲ６は、それぞれ独立に、水素原子等であり、ただし、式（２）で表される化合物は水または硫化水素ではない。）【選択図】なし