You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named N-[(3S,4S)-8-(8-bromoimidazo[1,2-c]pyrimidin-5-yl)-3-methyl-2-oxa-8-azaspiro[4.5]decan-4-yl]-2-methylpropane-2-sulfinamide by IUPAC nomenclature, provide its molecular formula.
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C19H28BrN5O2S
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