Using CC(C)c1oc(-c2ccccc2Cl)nc1CCC(O)c1ccc(O)cc1 to produce CC(C)c1oc(-c2ccccc2Cl)nc1CC=Cc1ccc(O)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.