You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Name the molecular formula for the molecule established as (2R)-2-[3-(3-ethoxypropyl)-4-oxoquinazolin-2-yl]sulfanyl-N-(ethylcarbamoyl)propanamide using the IUPAC nomenclature.
user
C19H26N4O4S
assistant