6-溴乙基-喋啶-2,4-二胺 、
Nα-[(4-methylamino)benzoyl-L-γ-glutamyl]-N-[2-hydroxy-1,1-bis(hydroxymethyl)ethyl]glycinamide 以
二氯甲烷 为溶剂,
以8%的产率得到N
α-[[4-[[(2,4-diamino-6-pteridinyl)methyl]methylamino]benzoyl]-L-γ-glutamyl]-N-[2-hydroxy-1,1-bis(hydroxymethyl)ethyl]glycinamide