ethyl 1-[N-(3,4-methylenedioxyphenylcarbonyl) amino]cyclohexanecarboxylate 、
phenylmethyl 1-[N-(4-methoxybenzenesulfonyl)amino]cyclohexanecarboxylate 以whereby 450 mg of the captioned 1-[N-(4-methoxybenzenesulfonyl)amino]cyclohexanecarboxylic acid was obtained in a yield of 26%的产率得到1-[N-(4-methoxybenzenesulfonyl)amino]cyclohexanecarboxylic acid