(2S)-2-[[4-[(2-amino-4-oxo-1H-quinazolin-6-yl)methyl-prop-2-ynylamino]benzoyl]amino]pentanedioic acid (2S)-2-[[4-[(2-amino-4-oxo-1H-quinazolin-6-yl)methyl-prop-2-ynyl-amino]benzoyl]amino]pentanedioic acid (2S)-2-[[[4-[(2-amino-4-oxo-1H-quinazolin-6-yl)methyl-prop-2-ynylamino]phenyl]-oxomethyl]amino]pentanedioic acid (2S)-2-[[4-[(2-amino-4-keto-1H-quinazolin-6-yl)methyl-propargyl-amino]benzoyl]amino]glutaric acid (2S)-2-[[4-[(2-amino-4-oxo-1H-quinazolin-6-yl)methyl-prop-2-ynyl-amino]phenyl]carbonylamino]pentanedioic acid 10-PROPARGYL-5,8-DIDEAZAFOLIC ACID CB3 C11737 CB3717 (S)-2-[(1-{4-[(2-Amino-4-oxo-3,4-dihydro-quinazolin-6-ylmethyl)-prop-2-ynyl-amino]-phenyl}-methanoyl)-amino]-pentanedioic acid AIDS-106597 AIDS106597 PDDF