You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
methyl 5-[4-[(3S,8R,9S,10S,13R,14S,17R)-10,13-dimethyl-17-[(2R)-6-methylheptan-2-yl]-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl]-1-[4-methoxy-3-methoxycarbonyl-5-[(4-methoxy-3-methoxycarbonylbenzoyl)amino]phenyl]but-1-enyl]-2-methoxy-3-[(4-methoxy-3-methoxycarbonylbenzoyl)amino]benzoate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C69H88N2O14
assistant