2-[(4-methoxyphenyl)methyl]-1,3-benzoxazole

苯并[d]噁唑-2-羧酸甲酯

2-(2-chlorophenyl)-1,3-benzoxazole

methyl 2-(2-oxo-4H-1,4-benzoxazin-3-ylidene)acetate

ethyl 2-methoxy-2H-1,3-benzoxazole-3-carboxylate