You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 2-[4-[[3-(1-methoxyethyl)-1,2,4-oxadiazol-5-yl]methyl]-1,4-diazepan-1-yl]-3H-quinazolin-4-one into molecular formula.
user
C19H24N6O3
assistant