Using CCOC=O, CC(C)(C)OC(=O)N1CCC2(CCCC2=O)CC1 to produce CC(C)(C)OC(=O)N1CCC2(CCC(CO)C2=O)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.