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-[3-(methylcarbamoyl)-7-(trifluoromethyl)thieno[3,2-b]pyridin-5-yl]piperidin-4-yl] N-[(2S)-pent-3-yn-2-yl]carbamate .
user
C21H23F3N4O3S
assistant