Using C=CCBr, CC(C)C(O)(Cn1cncn1)c1ccc(Oc2ccc(Cl)cc2)cc1Cl to produce C=CCOC(Cn1cncn1)(c1ccc(Oc2ccc(Cl)cc2)cc1Cl)C(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.