You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule 2-[6-[(3R)-3-ethylpyrrolidin-1-yl]pyrimidine-4-carboximidoyl]-4-propan-2-yloxycyclohexa-2,4-dien-1-amine ?
user
C20H29N5O
assistant