Using OCc1ccccc1, CC(C)(C)OC(=O)N1CCc2nc(Nc3ccc(-c4cnco4)cc3)nc(O)c2C1 to produce c1ccc(COc2nc(Nc3ccc(-c4cnco4)cc3)nc3c2CNCC3)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.