A process for preparing (1R,3S)-3-(9-chloro-3-methyl-4-oxo-5H-(isoxazoloquinolin-5-yl))cyclohexanecarboxylic acid and esters thereof, as represented by formulas II and III, wherein R is a lower alkyl groups, and A and B are N or O, provided that when A is N, B is O, or when A is O, B is N: Formula (III) and Formula (II).
一种制备(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过程,如公式II和III所示,其中R为较低的烷基基团,A和B为N或O,前提是当A为N时,B为O,或当A为O时,B为N:公式(III)和公式(II)。