You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule 8-(5-chlorothiophen-2-yl)sulfonyl-1-oxa-2,8-diazaspiro[4.5]dec-2-ene-3-carboxylic acid;[8-(2,5-dichlorophenyl)sulfonyl-1-oxa-2,8-diazaspiro[4.5]dec-2-en-3-yl]-(4-thieno[2,3-d]pyrimidin-4-ylpiperazin-1-yl)methanone into molecular formula.
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C36H37Cl3N8O9S4
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