Formulas II and III, wherein R is a lower alkyl group, A and B are N or O, provided that when A is N, B is O, and when A is O, B is N Production of (1R, 3S) -3- (9-chloro-3-methyl-4-oxo-5H- (isoxazoloquinolin-5-yl)) cyclohexanecarboxylic acid and its ester represented by Method. Formula (III) and Formula (II).
公式 II 和 III,其中 R 是较低的烷基基团,A 和 B 是 N 或 O,只要当 A 是 N 时,B 是 O,当 A 是 O 时,B 是 N,生产(1R, 3S)-3-(9-
氯-3-甲基-4-氧代-5H-(
异噁唑喹啉-5-基))
环己烷羧酸及其酯的方法。公式(III) 和 公式(II)。