You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance (1S,3R,6R,7R)-1,3-dimethyl-5-prop-1-en-2-yltricyclo[4.3.1.03,7]dec-4-en-9-one .
user
C15H20O
assistant