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 cumene;2,9-di(propan-2-yl)-2,9-diazaspiro[5.5]undecane;3,9-di(propan-2-yl)-3,9-diazaspiro[5.5]undecane;4,9-di(propan-2-yl)-1-oxa-4,9-diazaspiro[5.5]undecane;ethane;2-methylbutane;2-methylpropane;2-propan-2-yl-3,4,6,7,8,8a-hexahydro-1H-pyrrolo[1,2-a]pyrazine is given. What is its corresponding molecular formula?
user
C90H196N8O
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