4-氯-2-乙基喹唑啉

2-乙基-苯并[d][1,3]噁嗪-4-酮

2-ethyl-3-(4-hydroxyphenyl)quinazolin-4-one

2-乙基喹唑啉-4-醇

2-ethyl-3-(2-hydroxyethyl)quinazolin-4-one