You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 1-[5-[3-(2-aminoethyl)-2-methylindole-1-carbonyl]-3,4-dihydro-1H-2,7-naphthyridin-2-yl]ethanone .
user
C22H24N4O2
assistant