You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 1-methyl-4-(20-oxapentacyclo[15.2.1.02,16.03,8.010,15]icosa-2(16),3,5,7,10,12,14-heptaen-9-ylidene)piperidine;hydrochloride into its molecular formula.
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C25H26ClNO
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