Using COc1ccc2c(c1)C(=O)N(c1cc(C(=O)NC3CC3)ccc1C)C(=O)C2 to produce COc1ccc2ccn(-c3cc(C(=O)NC4CC4)ccc3C)c(=O)c2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.