You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 5-[8-amino-3-[(2S)-1-prop-2-enoylpyrrolidin-2-yl]imidazo[1,5-a]pyrazin-1-yl]-N-[4-(thiadiazol-4-yl)phenyl]pyridine-3-carboxamide into its molecular formula.
user
C27H23N9O2S
assistant