(S)-2-tert-butoxy-2-(5-(4-chlorophenyl)-7-methyl-2-((methyl(phenyl)amino)methyl)quinolin-6-yl)acetic acid 、 ethyl 2-(5-(biphenyl-4-yl)-2,7-dimethylquinolin-6-yl)-2-tert-butoxyacetate 生成 2-(5-(biphenyl-4-yl)-2,7-dimethylquinolin-6-yl)-2-tert-butoxyacetic acid