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 identified by 1-[(3bR,5aR,6S,9aS,9bR)-6-(hydroxymethyl)-3b,6-dimethyl-5,5a,7,8,9,9b,10,11-octahydro-4H-naphtho[2,1-e][2]benzofuran-9a-yl]propan-2-one ?
user
C22H32O3
assistant