30544-61-7
利胆丁酸
+
71454-70-1
4-[(2,6-dimethylphenyl)amino]butyric acid ethyl ester
→
71455-67-9
4-[N-[4-(N-(4-chlorobenzoyl)-4-methoxyanilino)butanoyl]-2,6-dimethylanilino]butanoic acid