3-(4-methoxyphenyl)cyclohepta[d][1,2]oxazol-4-one

3-(4-methoxy-phenyl)-isoxazole-4,5-dicarboxylic acid dimethyl ester

呋喃

3-(4-甲氧基苯基)异噁唑

3,4-呋喃二羧酸二甲酯