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 8-pyridin-2-yl-22-thieno[3,2-b]thiophen-5-yl-8,22-diazaheptacyclo[13.6.1.04,20.07,19.09,18.012,17.016,21]docosa-1,3,5,9(18),10,12(17),14,16(21),19-nonaene is given. What is its corresponding molecular formula?
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C31H17N3S2
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