101760-45-6 L-Glutamic acid, N-(4-(((2-amino-1,4-dihydro-4-oxo-6-pteridinyl)methyl)-2-propylamino)benzoyl)- L-Glutamic acid, N-(4-(((2-amino-1,4-dihydro-4-oxo-6-pteridinyl)methyl)-2-propynylamino)benzoyl)- N(10)-Propargylfolic acid N-(4-(((2-Amino-1,4-dihydro-4-oxo-6-pteridinyl)methyl)-2-propynylamino)benzoyl)-L-glutamic acid Urdamycin B