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 16-(dimethylcarbamoyl)tetracyclo[6.6.2.02,7.09,14]hexadeca-1(15),2,4,6,8(16),9,11,13-octaene-15-carboxylic acid ?
user
C20H15NO3
assistant