You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance N-[(4R,4aS,12bS)-4a,9-dihydroxy-3-prop-2-enyl-1,2,4,5,6,7,7a,13-octahydro-4,12-methanobenzofuro[3,2-e]isoquinolin-7-yl]-3-(3-methylphenyl)-N-(2-methylpropyl)propanamide .
user
C33H42N2O4
assistant