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 [(1S,2R,3S,15R)-6-(hydroxymethyl)-2,15,19,19-tetramethyl-9-prop-1-en-2-yl-18-hexacyclo[12.8.0.01,3.03,11.06,10.015,20]docosanyl] 3-(3,4-dihydroxyphenyl)prop-2-enoate .
user
C39H54O5
assistant