You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule (3,4-dimethylphenyl) 4-[3-(6-amino-7H-purin-2-yl)prop-2-ynyl]piperidine-1-carboxylate into molecular formula.
user
C22H24N6O2
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