You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named (3S,3'S,4'S,5'R)-4'-amino-6-chloro-3'-[(1Z,3Z)-5-chloro-1-fluorohexa-1,3,5-trienyl]-5'-(hydroxymethyl)-1'-(2-methylpropyl)spiro[1H-indole-3,2'-pyrrolidine]-2-one is given. What is its corresponding molecular formula?
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C22H26Cl2FN3O2
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