You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named tert-butyl N-[1-(2-chloro-5,6,7,8-tetrahydroquinazolin-4-yl)pyrrolidin-3-yl]-N-ethylcarbamate is given. What is its corresponding molecular formula?
user
C19H29ClN4O2
assistant