4-(N-[2,4-二氨基-6-喋啶甲基]-氨基)苯酸钠盐

4-[N-(2,4-二氨基-6-蝶啶甲基)-N-甲氨基]苯甲酸半盐酸盐n水

甲氨蝶呤

5-(carboxymethylamino)-4-[[4-[(2,4-diaminopteridin-6-yl)methyl-methylamino]benzoyl]amino]-5-oxopentanoic acid

diethyl 2-[[4-[(E)-2-(2,4-diaminopteridin-6-yl)ethenyl]benzoyl]amino]pentanedioate