You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(12aS)-9-[[3-[2,2-dimethylpropyl-[2-[2-(2-methoxyethoxy)ethoxy]ethyl]amino]-5-ethylphenyl]methoxy]-8-methoxy-12a,13-dihydroindolo[2,1-c][1,4]benzodiazepin-6-one is the IUPAC name of a molecule. Please give its molecular formula.
user
C38H49N3O6
assistant