You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance O-methyl N-[[3-fluoro-4-[4-[(2S)-pyrrolidine-2-carbonyl]piperazin-1-yl]phenyl]-(2H-triazol-4-yl)methyl]carbamothioate .
user
C20H26FN7O2S
assistant