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 2-[2-(benzylamino)-7-hydroxy-8-(hydroxymethyl)-4a,8-dimethyl-4,5,6,7,8a,9-hexahydrobenzo[f][1,3]benzothiazol-4-yl]-N-[(4-methoxyphenyl)methyl]acetamide is given. What is its corresponding molecular formula?
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C31H39N3O4S
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