According to the present invention, there is provided a method for preparing an optically active compound, characterized in that said method comprises permitting a mixture of optical isomers relative to the carbon atom in the β-position in relation to the carbon atom bound to an esterified hydroxy group of an enol ester to hydrolyse either one optical isomer preferentially in the presence of an enzyme and allowing the carbonyl compound resulting from such hydrolysis to enrich the proportion of its isomer having either one configuration in the β-position in relation to the carbonyl group or allowing the enol ester left non-hydrolyzed to enrich the proportion of its isomer having either one configuration on the carbon atom in the β-position in relation to the carbon atom to which the esterified hydroxyl group bonds.
根据本发明,提供了一种制备光学活性化合物的方法,其特征在于所述方法包括在酶的存在下允许与烯
酮酯的酯化羟基所结合的碳原子相对的β-位的光学异构体混合物中,优先
水解其中一种光学异构体,并使由此
水解产生的羰基化合物富集其β-位相对于羰基团的任一构型的异构体比例,或者允许未被
水解的烯
酮酯富集其β-位相对于酯化羟基所结合的碳原子的任一构型的异构体比例。