Using COC(=O)NOCC(=O)[O-], N#Cc1cc(Br)c(OC(=O)OCI)c(Br)c1 to produce COC(=O)NOCC(=O)OCOC(=O)Oc1c(Br)cc(C#N)cc1Br, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.