You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule [9-(2,6-dimethyl-4-prop-1-ynylphenyl)-10-oxo-3-(pyridine-3-carbonyl)-3-azaspiro[5.5]undec-8-en-8-yl] pyridine-3-carboxylate ?
user
C33H31N3O4
assistant