You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance 2-cyclopropyl-3-(3,4-dichlorophenyl)-7-(2-methylphenyl)-4H-pyrazolo[1,5-a]pyrimidin-5-one .
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C22H17Cl2N3O
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