You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 2-(aminomethylidene)-N-[(4-cyano-1,3-thiazol-2-yl)methyl]-3-methylimino-N'-(2-phenylimidazo[1,2-a]pyrimidin-7-yl)butanediamide into its molecular formula.
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C23H19N9O2S
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