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 (4aS,6aR,6aS,6bR,10S,12aS,14bR)-2,4a,6a,6b,9,9,12a-heptamethyl-13-oxo-10-[(2-phenyl-1,3-dioxolan-4-yl)methoxy]-3,4,5,6,6a,7,8,8a,10,11,12,14b-dodecahydro-1H-picene-2-carboxylic acid .
user
C40H56O6
assistant