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 5-[(2R,3R)-3-[[4-(dimethylamino)benzoyl]amino]-2-methylpiperidin-1-yl]-3-[4-(4-methylpiperazin-1-yl)anilino]pyrazine-2-carboxamide .
user
C31H41N9O2
assistant