5259-87-0
N-(2-苯基乙酰基)-甘氨酸甲酯
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332095-91-7
2-benzyl-4-(hydroxymethylidene)-1,3-oxazol-5-one
62190-98-1
2-benzyl-4-(dimethylaminomethylidene)-1,3-oxazol-5-one