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)-1-[(2R)-2-methyl-2,3-dihydroindol-1-yl]-1-oxopropan-2-yl] 2-(4-nitrophenoxy)acetate ?
user
C20H20N2O6
assistant