Using COC(=O)c1cnc(-c2ccc(-c3nc4ccc(N5CCOCC5)cc4[nH]3)nc2)c(Cl)c1 to produce OCc1cnc(-c2ccc(-c3nc4ccc(N5CCOCC5)cc4[nH]3)nc2)c(Cl)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.