Using COc1cccc(-c2nc3cc(NC(=O)c4c(C(=O)N5CCOCC5)cnn4C)ccn3n2)c1 to produce Cn1ncc(C(=O)N2CCOCC2)c1C(=O)Nc1ccn2nc(-c3cccc(O)c3)nc2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.