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 2-(1H-indol-3-yl)-N-[1-[2-methyl-6-(trifluoromethyl)pyrimidin-4-yl]piperidin-4-yl]acetamide ?
user
C21H22F3N5O
assistant