The present invention relates to a process in which N-acyl form of DL-erythro 3-substituted serines represented by the following general formula (1):
(wherein, R1 means an alkanoyl group having 1-10 carbons, a benzoyl group, a halogen-substituted alkanoyl group having 1-5 carbons or a halogen-substituted benzoyl group, and R2 means a phenyl group or a cyclohexyl group) is subjected to asymmetrical hydrolysis with L-aminoacylase or D-aminoacylase, thereby giving unreacted N-acyl-D-erythro 3-substituted serine in the case of L-aminoacylase or hydrolyzed D-erythro 3-substituted serine in the case of D-aminoacylase. The D-erythro forms are useful as an intermediate for medicines, for example, known to be useful as an anti-HIV drug (WO 01/40227).
本发明涉及如下通式(1)所代表的DL-赤式3-取代
丝氨酸的N-酰基形式的工艺:
(其中,R1 指具有 1-10 个碳原子的烷酰基、苯甲酰基、具有 1-5 个碳原子的卤代烷酰基或卤代苯甲酰基、和 R2 指苯基或环己基)与 L-
氨基乙酰化酶或 D-
氨基乙酰化酶进行不对称
水解,从而在 L-
氨基乙酰化酶的情况下得到未反应的 N-酰基-D-赤式 3-取代
丝氨酸,或在 D-
氨基乙酰化酶的情况下得到
水解的 D-赤式 3-取代
丝氨酸。D-erythro 形式可用作药物的中间体,例如,已知可用作抗艾滋病毒药物(WO 01/40227)。