You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 3-(1-methylpyrazol-4-yl)-1-(7-morpholin-4-yl-5-thia-2-azaspiro[3.4]octan-2-yl)propan-1-one into its molecular formula.
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C17H26N4O2S
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