4-Benzoyl-3-n-butoxy-5-nitro-benzoesaeure 、
4-Benzoyl-3-(p-chlorbenzyloxy)-5-nitro-benzoesaeure 以5-amino-4-benzoyl-3-(p-chlorobenzyloxy)benzoic acid is obtained with a melting point of 248°-249° C.的产率得到5-Amino-4-benzoyl-3-(p-chlorbenzyloxy)-benzoesaeure