Using Cc1c(OC2CCCCO2)cc2c(c1C)OC(C)(CCCO)CC2 to produce Cc1c(OC2CCCCO2)cc2c(c1C)OC(C)(CCC=O)CC2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.