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-acetamido-3-(1H-indol-3-yl)-N-[(4R)-1-methyl-4,5,6,7-tetrahydroindazol-4-yl]propanamide ?
user
C21H25N5O2
assistant