You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Translate the chemical IUPAC name (3R,3aS,4aS,5R,8aR,9aR)-3-[[4-(5-chloro-2-methylphenyl)piperazin-1-yl]methyl]-8a-methylspiro[3a,4,4a,6,7,8,9,9a-octahydro-3H-benzo[f][1]benzofuran-5,2'-oxirane]-2-one into its molecular formula.
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C26H35ClN2O3
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