You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule (2S)-2-[[1-[(2,4-diaminopteridin-6-yl)methyl-oxidoamino]-2,3-dihydroindole-5-carbonyl]amino]hexanedioic acid ?
user
C22H24N9O6-
assistant