You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-[2-[(1S)-1-(chloromethyl)-5-hydroxy-8-methyl-1,2-dihydrobenzo[e]indole-3-carbonyl]-1-benzoselenophen-5-yl]-4-piperidin-1-ylbutan-2-one The above is the IUPAC name of a molecule. Write its molecular formula.
user
C32H33ClN2O3Se
assistant