Using COc1nc(S)c(C#N)c(-c2ccc(OCCO)cc2)c1C#N, COc1cccc(CBr)c1 to produce COc1cccc(CSc2nc(OC)c(C#N)c(-c3ccc(OCCO)cc3)c2C#N)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.