Synonyms: (R)-N-(4-(2-(2-Amino-1,4,5,6,7,8-hexahydro-4-oxopyrido[2,3-d]pyrimidin-6-yl)ethyl)benzoyl)-L-glutamic Acid;L-Glutamic acid, N-(4-(2-(2-amino-1,4,5,6,7,8-hexahydro-4-oxopyrido(2,3-d)pyrimidin-6-yl)ethyl)benzoyl)-, (R)-;L-glutamic acid, N-[4-[2-(2-amino-5,6,7,8-tetrahydro-4-hydroxypyrido[2,3-d]pyrimidin-6-yl)ethyl]benzoyl]-;N-{4-[2-(2-amino-4-hydroxy-5,6,7,8-tetrahydropyrido[2,3-d]pyrimidin-6-yl)ethyl]benzoyl}-L-glutamic acid