3,7-dimethoxy-4-phenyl-4H-furo<3,2-b>indole-2-carboxylic acid methyl ester

2-anilino-5-methoxybenzoic acid

6-methoxy-1-phenyl-2H-3,1-benzoxazin-4-one

3-hydroxy-5-methoxy-1-phenyl-1H-indole-2-carboxylic acid methyl ester

2-[N-(carboxymethyl)anilino]-5-methoxybenzoic acid