Using COc1ccc(OC)c2c(OC)c(C(O)CCC(C)C)cc(OC)c12, CCI to produce CCOC(CCC(C)C)c1cc(OC)c2c(OC)ccc(OC)c2c1OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.