You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
6-(imidazo[1,2-a]pyridin-5-ylmethyl)-3-(oxan-4-yl)benzo[h]quinazolin-4-one The above is the IUPAC name of a molecule. Write its molecular formula.
user
C25H22N4O2
assistant