1,4-二氢-1,4-二甲基-2,3-喹喔啉二酮

methyl 2-(2-oxopropylamino)prop-2-enoate

methyl 4-[4-(2-chlorophenyl)phenyl]-2-methylidene-4-oxobutanoate

2,2'-亚甲基二苯甲醚

ethyl 2-chloro-2-methylbutanoate