You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(1R)-3-[[(3aR,5aR,5bR,7aR,9S,11aR,11bR,13aS)-5a,5b,8,8,11a-pentamethyl-3a-[[2-methyl-2-(pyrimidine-2-carbonylamino)propanoyl]amino]-2-oxo-1-propan-2-yl-4,5,6,7,7a,9,10,11,11b,12,13,13a-dodecahydro-3H-cyclopenta[a]chrysen-9-yl]oxycarbonyl]-2,2-dimethylcyclobutane-1-carboxylic acid is the IUPAC name of a molecule. Please give its molecular formula.
user
C46H66N4O7
assistant