Using COC(Cl)Cl, CCCc1ccc2oc(Cc3ccc(OC)cc3)c(C)c2c1O to produce CCCc1ccc2oc(Cc3ccc(OC)c(C=O)c3)c(C)c2c1O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.