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 tert-butyl 3-bromo-5-methyl-6-[(3S,4S)-3-methyl-4-[(2-methylpropan-2-yl)oxycarbonylamino]-2-oxa-8-azaspiro[4.5]decan-8-yl]pyrazolo[3,4-b]pyrazine-1-carboxylate into molecular formula.
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C25H37BrN6O5
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