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 3-[(6aR,9S,10aR)-5-formyl-7-propyl-6,6a,8,9,10,10a-hexahydro-4H-indolo[4,3-fg]quinolin-9-yl]-1,1-diethylurea ?
user
C23H32N4O2
assistant