You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-[4-(cyclopropylmethylamino)-3,5,9-triazatricyclo[6.2.2.02,7]dodeca-2,4,6-trien-9-yl]-2-(1-hydroxycyclobutyl)ethanone The above is the IUPAC name of a molecule. Write its molecular formula.
user
C19H26N4O2
assistant