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 [(4R,4aS,5R,6aS,7R,11aS,11bR)-4a,5-dihydroxy-4,7,11b-trimethyl-2,3,5,6,6a,7,11,11a-octahydro-1H-naphtho[2,1-f][1]benzofuran-4-yl]methyl benzoate .
user
C27H34O5
assistant