4-benzylidene-2-(4-methyl-1,2,3-thiadiazol-5-yl)oxazol-5(4H)-one

乙酸酐

2-(4-methyl-1,2,3-thiadiazole-5-carboxamido)acetic acid

4-benzylidene-2-chloromethyl-4H-oxazol-5-one

2-[(2,2-dichloroacetyl)amino]-3-phenylpropanoic acid