2-(4-氯苯基)-噁唑-4-羧酸乙酯

2-对甲苯噁唑-4-羧酸乙酯

ethyl 2-pyridin-2-yl-1,3-oxazole-4-carboxylate

ethyl 2,5-di(pyridin-2-yl)oxazole-4-carboxylate

2-(4-氨基苯基)-1,3-噁唑-4-羧酸乙酯