ethyl 2-[6-amino-2-{3-(t-butoxycarbonylamino)-propyl}amino-9H-purin-9-yl]acetate

2,6-二氨基嘌呤

苯甲酰乙酸乙酯

ethyl 2-[4-(5-oxo-2H-1,2,4-oxadiazol-3-yl)anilino]acetate

吲哚-3-乙酸