丙酸酐

乙酸丙酸酐

丙酸-4-甲基苯(酚)酯

(7α,8α)-2-Benzoyl-5,8-dimethyl-1,2-diazabicyclo(5.2.0)nona-3,5-dien-9-on

2-benzoyl-5-methyl-1,2-diazabicyclo[5.2.0]nona-3,5-dien-9-one