You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named (3S)-4'-[hydroxy-[(2R)-2-methyl-2,3-dihydro-1-benzofuran-5-yl]methylidene]-1'-(2-morpholin-4-ylethyl)-1-propylspiro[indole-3,5'-pyrrolidine]-2,2',3'-trione by IUPAC nomenclature, provide its molecular formula.
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C30H33N3O6
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