You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(3S,4aR,6aR,6aR,6bR,8aR,12aS,13R,14aR,14bR)-8a-(2-hydroxyethyl)-4,4,6a,6b,11,11,14b-heptamethyl-1,2,3,4a,5,6,6a,7,8,9,10,12,12a,13,14,14a-hexadecahydropicene-3,13-diol;2-[(4aR,6aR,6aR,6bR,8aR,12aR,14R,14aR,14bS)-10,14-dihydroxy-11-isocyano-2,2,6a,6b,9,9,12a-heptamethyl-1,3,4,5,6,6a,7,8,8a,12,13,14,14a,14b-tetradecahydropicen-4a-yl]acetic acid;2-[(4aR,6aR,6aR,6bR,8aR,12aR,14R,14aR,14bS)-14-hydroxy-2,2,6a,6b,9,9,12a-heptamethyl-10-oxo-3,4,5,6,6a,7,8,8a,11,12,13,14,14a,14b-tetradecahydro-1H-picen-4a-yl]acetic acid;2-[(4aR,6aR,6aR,6bR,8aR,11Z,12aR,14R,14aR,14bS)-14-hydroxy-11-(hydroxymethylidene)-2,2,6a,6b,9,9,12a-heptamethyl-10-oxo-1,3,4,5,6,6a,7,8,8a,12,13,14,14a,14b-tetradecahydropicen-4a-yl]acetic acid;2-[(1R,2R,5R,10S,11R,12R,14R,15R,23R)-12-hydroxy-1,2,8,8,15,22,22-heptamethyl-20-oxa-19-azahexacyclo[12.11.0.02,11.05,10.015,23.017,21]pentacosa-17(21),18-dien-5-yl]acetic acid The above is the IUPAC name of a molecule. Write its molecular formula.
user
C158H252N2O20
assistant