You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule (2R)-2-[2-[3-cyano-4-(3-fluorophenyl)-6-methoxy-1-oxoisoquinolin-2-yl]ethylamino]-2-phenylacetic acid into molecular formula.
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C27H22FN3O4
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