You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 6-amino-1-methyl-4-[4-(2-methylimidazol-1-yl)phenyl]-3-quinolin-2-yl-4H-pyrano[2,3-c]pyrazole-5-carbonitrile into molecular formula.
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C27H21N7O
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