You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule identified by (2S)-2-[1-(6-methoxy-1H-indole-2-carbonyl)piperidin-4-yl]-N-[3-(4-methylpiperazin-1-yl)propyl]propanamide ?
user
C26H39N5O3
assistant