You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 2-(9,9-dimethyl-7-oxo-6-thiophen-2-yl-6,8,10,11-tetrahydrobenzo[b][1,4]benzodiazepin-5-yl)-N-(2-phenylethyl)acetamide into its molecular formula.
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C29H31N3O2S
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