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 ethyl 2-cyclohexyl-8-(1-hydroxyethyl)-9-methoxy-3-methyl-5,6-dihydropyrrolo[2,1-a]isoquinoline-1-carboxylate .
user
C25H33NO4
assistant