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 2-[2-[(3S,5aR,6R,7R,8aS)-6-[(E,3R)-4-(2,4-difluorophenoxy)-3-hydroxybut-1-enyl]-7-hydroxy-3,4,5,5a,6,7,8,8a-octahydro-2H-cyclopenta[b]oxepin-3-yl]ethyl]pentanoic acid .
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C26H36F2O6
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