You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 4-amino-6-[[(1S)-1-[5-chloro-3-[5-(2-methylpropyl)-1H-pyrazol-3-yl]-4-oxoquinazolin-2-yl]ethyl]amino]pyrimidine-5-carbonitrile into molecular formula.
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C22H22ClN9O
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