You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance 2-[7-chloro-3-(2-methoxyethyl)-4-oxoquinazolin-2-yl]sulfanyl-N-(2-fluorophenyl)acetamide .
user
C19H17ClFN3O3S
assistant