You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 3-[(2-cyclopentylacetyl)-[2-(3-methoxyphenyl)ethyl]amino]-4-hydroxy-N-(2-hydroxyethyl)-8-(hydroxymethyl)-6-methoxy-3,4,4a,9b-tetrahydrodibenzofuran-1-carboxamide by IUPAC nomenclature, provide its molecular formula.
user
C33H42N2O8
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