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 [(1R,3S,6R,8S,11R,12S,15R,16S,19S,21R,23S)-19-acetyloxy-1,23-dihydroxy-3,7,7,11,16,20,20-heptamethyl-8-pentacyclo[13.8.0.03,12.06,11.016,21]tricosanyl] 4-hydroxybenzoate .
user
C39H58O7
assistant