5-phenyl-3-propan-2-yl-2-sulfanylidene-1,3-thiazolidin-4-one

3-methyl-2-phenylbut-2-enoic acid

2-苯基乙酰丙酸

2-amino-3-phenylbutanedioic acid

triethyl 1-acetamido-2-phenylethane-1,1,2-tricarboxylate