You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the compound with this IUPAC name (2S)-4-methyl-2-[[(2S)-2-[(2-methylpropan-2-yl)oxycarbonylamino]-3-(2-oxo-1,3-dihydroindol-3-yl)propanoyl]amino]pentanoic acid ?
user
C22H31N3O6
assistant