Using COC(=O)CCc1ccc(C(=O)CCc2nc(-c3ccccc3OC)oc2C(C)C)cc1C to produce COC(=O)CCc1ccc(C(=O)CCc2nc(-c3ccccc3O)oc2C(C)C)cc1C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.