4-[(2-Tert-butoxycarbonyl methoxyphenylcarbamoyl)-methoxy]-5,7-dichloro-naphthalene-2-carboxylic acid methyl ester 、
氢氧化锂 以gives the title compound in 61% yield的产率得到4-[(2-carboxymethoxyphenylcarbamoyl)-methoxy]-5,7-dichloronaphthalene-2-carboxylic acid