5-chloro-4-(2-chloro-6-methylanilino)-3-thiophenacetic acid methyl ester 、 3-(2-chloro-6-methylanilino)-2-thiophenacetic acid ethyl ester 、
3-(2,6-dichloroanilino)-2-thiophenacetic acid methyl ester 生成 4-(2-chloro-6-methylanilino)-5-chloro-3-thiophenacetic acid