You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule N-[(4,6-dimethyl-2-oxo-1H-pyridin-3-yl)methyl]-3-[ethyl-[4-[2-methoxyethyl(methyl)amino]cyclohexyl]amino]-2-methyl-5-(2-oxospiro[1H-indole-3,4'-oxane]-6-yl)benzamide .
user
C40H53N5O5
assistant