Using COC(=O)C(=Cc1cccnc1)C(=O)OC(C)(C)C, COc1cccc2cc[nH]c12 to produce COC(=O)C(C(=O)OC(C)(C)C)C(c1cccnc1)n1ccc2cccc(OC)c21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.