You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule (1R,2R,3R,5S,6S,7S,10S,11R)-17-(hydroxymethyl)-6,7-dimethyl-14-oxopentacyclo[8.8.0.02,7.03,5.011,16]octadec-16-ene-6-carbonitrile ?
user
C22H29NO2
assistant