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 1-[(2S,3S)-3-[2-(3,5-dimethylpyrazol-1-yl)ethylamino]-2-[(4-fluorophenyl)methyl]piperidin-1-yl]ethanone ?
user
C21H29FN4O
assistant