You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 1-[4-[8-amino-3-[(3R)-1-(3-methyloxetane-3-carbonyl)piperidin-3-yl]imidazo[1,5-a]pyrazin-1-yl]phenyl]-2-(5-methylpyridin-2-yl)ethanone by IUPAC nomenclature, provide its molecular formula.
user
C30H32N6O3
assistant