Using Cc1cc(-c2ccccc2)c(CNC(=O)c2cc(Br)cc3c2cnn3C(C)C)c(=O)[nH]1 to produce CCCc1cc(C)[nH]c(=O)c1CNC(=O)c1cccc2c1cnn2C(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.