You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 10-(2,2-dimethylpropyl)-15-(2-isocyano-2-methylpropyl)-3,6,20-trimethyl-12-oxa-18-aza-20-azoniapentacyclo[11.7.1.02,11.04,9.017,21]henicosa-1(20),2(11),3,5,7,9,13,15,17(21),18-decaene into its molecular formula.
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C31H34N3O+
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