Using C=CC(C)(O)CCOC(C)=O, Cc1cc(O)c(C)c(C)c1O to produce CC(=O)OCCC1(C)CCc2c(C)c(O)c(C)c(C)c2O1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.