Using COC=Cc1nn(Cc2ccc(OC)cc2)c2cccc(C(=O)OC)c12 to produce COC(=O)c1cccc2c1c(CC=O)nn2Cc1ccc(OC)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.