3,5-二苯基-1,2,4-恶二唑

1,3-dichloroprop-1-en-2-yl diethyl phosphate

磺基-乙酸乙酯

ethyl 2-acetyl-4-oxo-4-phenylbut-2-enoate

ethyl 4-chlorobutanimidate,hydrochloride