You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named 2-[3-[(4-methoxyphenyl)methyl]-4-oxoquinazolin-2-yl]sulfanyl-N-(1-methoxypropan-2-yl)acetamide is given. What is its corresponding molecular formula?
user
C22H25N3O4S
assistant