Using CCOC(/C=C/B1OC(C)(C)C(C)(C)O1)OCC, Nc1ncc(I)c2scc(Br)c12 to produce CCOC(/C=C/c1cnc(N)c2c(Br)csc12)OCC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.