You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name (4R)-N-(2-chloro-4-methylphenyl)-4-(piperidine-1-carbonyl)-8-oxa-2-azaspiro[4.5]decane-2-carboxamide into its molecular formula.
user
C22H30ClN3O3
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