You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(1-ethoxy-6-methoxy-4-oxo-7-piperidin-4-yl-2H-quinazolin-3-yl)methyl 2,2-dimethylpropanoate;hydrochloride The above is the IUPAC name of a molecule. Write its molecular formula.
user
C22H34ClN3O5
assistant