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L-glutamic acid,n-[4-[[(2,4-diamino-1,5,6,7-tetrahydro-6-pteridinyl)methyl]methylamino]benzoyl]-(9ci)

L-glutamic acid,n-[4-[[(2,4-diamino-5-methyl-6-quinazolinyl)methyl]amino]benzoyl]-, diethylester (9ci)

L-glutamic acid,n-[4-[[(2,4-diamino-6-pteridinyl)methyl](phenylmethyl)amino]benzoyl]-

L-glutamic acid,n-[4-[[(2,4-diaminopyrido[3,2-d]pyrimidin-6-yl)methyl]methylamino]benzoyl]-

L-glutamic acid,n-[4-[[(2-amino-1,4,5,6,7,8-hexahydro-4-oxo-6-pteridinyl)methyl](3-chloro-1-oxopropyl)amino]benzoyl]-(9ci)

L-glutamic acid,n-[4-[[(2-amino-1,4-dihydro-4-oxo-6-pteridinyl)methyl](3-chloro-1-oxopropyl)amino]benzoyl]-(9ci)

L-glutamic acid,n-[4-[[(2-amino-1,4-dihydro-4-oxo-6-pteridinyl)methyl]nitrosoamino]benzoyl]-(9ci)

L-glutamic acid,n-[4-[[(2-amino-1,4-dihydro-4-oxopyrido[3,2-d]pyrimidin-6-yl)methyl]amino]benzoyl]-, dihydrochloride (9ci)

L-glutamic acid,n-[4-[[(2-amino-3,4-dihydro-4-oxo-6-quinazolinyl)methyl]methylamino]benzoyl]-

L-glutamic acid,n-[4-[[[5,7-bis(acetylamino)pyrido[3,4-b]pyrazin-3-yl]methyl]methylamino]benzoyl]-,diethyl ester (9ci)