Using CCOc1ccc(-c2ccc3c(c2)COC3=O)c(O)c1OC, CC1(CBr)COC1 to produce CCOc1ccc(-c2ccc3c(c2)COC3=O)c(OCC2(C)COC2)c1OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.