Using COC(=O)c1cc(Br)ccc1NC(=O)COc1ccc(C#N)cc1 to produce N#Cc1ccc(Oc2c(O)c3cc(Br)ccc3[nH]c2=O)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.