Using CCOC(COc1cc(N2C(=O)N(Cc3ccnc4ccccc34)C(C)(C)C2=O)ccc1OC)OCC to produce COc1ccc(N2C(=O)N(Cc3ccnc4ccccc34)C(C)(C)C2=O)cc1OCC=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.