γ-tert-butyl N-(4-amino-4-deoxy-N10-formylpteroyl)-L-glutamate

2,3-二溴丙醛

4-(N-[2,4-二氨基-6-喋啶甲基]-氨基)苯酸钠盐

2,4-二氨基-6-羟甲基蝶啶

4-[[2-(2,4-diaminopteridin-6-yl)acetyl]amino]benzoic acid