Using CCCCN(C(C)=O)C1CC(C)(C)NC(C)(C)C1, O=C(O)CN(CCN(CC(=O)O)CC(=O)O)CC(=O)O to produce CCCCN(C(C)=O)C1CC(C)(C)N(O)C(C)(C)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.