You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule ethyl 3-[2-[2-(3-chlorophenyl)ethylamino]-2-oxoethyl]-6-methyl-4-oxofuro[2,3-d]pyrimidine-5-carboxylate ?
user
C20H20ClN3O5
assistant