Diethyl 8-Deazafolic Acid

Diethyl N-(4-aminobenzoyl)-L-glutamate

2-amino-5,6,7,8-tetrahydro-6-methylpyrido[3,2-d]pyrimidin-4(3H)-one

diethyl 2-[[4-[(9-amino-7-oxo-5,8,10-triazabicyclo[4.4.0]deca-8,11-dien-4-yl)methylamino]benzoyl]amino]pentanedioate

2-[[4-[[2-amino-5-[[1-[4-hydroxy-5-(phosphonooxymethyl)oxolan-2-yl]-2,4-dioxopyrimidin-5-yl]methyl]-4-oxo-1,6,7,8-tetrahydropyrido[3,2-d]pyrimidin-6-yl]methylamino]benzoyl]amino]pentanedioic acid