Using CC(C)Sc1nnnn1-c1ccc(OCCCOc2c(Cl)cc(O)cc2Cl)cc1, ClCCC(Cl)(Cl)Cl to produce CC(C)Sc1nnnn1-c1ccc(OCCCOc2c(Cl)cc(OCC=C(Cl)Cl)cc2Cl)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.