Using COC(=O)COc1c(C(=O)CCc2ccc(OC)cc2)ccc(OC)c1CCC(C)C to produce COc1ccc(CCC(=O)c2ccc(OC)c(CCC(C)C)c2OCC(=O)O)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.