Using COC(=O)C(C)(C)NC(=O)Cc1ccc(OCc2ccc3ccccc3n2)cc1 to produce CC1(C)NC(=O)C(c2ccc(OCc3ccc4ccccc4n3)cc2)=C1O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.