甲氨蝶呤-gamma-甲基酰胺

2-[[4-[(2,4-二氨基蝶啶-6-基)甲基-甲基氨基]苯甲酰基]氨基]-5-[(2-甲基丙烷-2-基)氧基]-5-氧代戊酸

ethyl 2-[[4-[(2,4-diaminopteridin-6-yl)methyl-methylamino]benzoyl]amino]-4-diethoxyphosphorylbutanoate

4-[methyl-(2,2,2-trifluoroacetyl)amino]benzoic acid

p-benzoic anhydride