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 (6E,8R,9R)-7-methoxy-4,5-dimethylidene-9-phenoxy-6-phenyl-1-azabicyclo[6.2.0]dec-6-en-10-one .
user
C24H23NO3
assistant