You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named (3R)-N-[(2R)-2-[(1R,3aS,4E,7aR)-4-[2-[(3R,5R)-3,5-dihydroxycyclohexylidene]ethylidene]-7a-methyl-2,3,3a,5,6,7-hexahydro-1H-inden-1-yl]propyl]-4,4,4-trifluoro-3-hydroxy-3-methylbutanamide by IUPAC nomenclature, provide its molecular formula.
user
C26H40F3NO4
assistant