You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
tert-butyl 3,5-dimethyl-4-(2-pyrrolidin-1-ylethylcarbamoyl)-1H-pyrrole-2-carboxylate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C18H29N3O3
assistant