Using COCCN(CCc1cc2c([nH]c(=O)n2Cc2ccccc2)c(NCc2ccccc2)n1)C(=O)OC(C)(C)C to produce COCCNCCc1cc2c([nH]c(=O)n2Cc2ccccc2)c(N)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.