You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance (2S)-2-[[4-[bis[(2-amino-4-oxo-4aH-pteridin-6-yl)methyl]amino]benzoyl]amino]pentanedioic acid .
user
C26H24N12O7
assistant