Using CC(C)C[C@H](NC(=O)OC(C)(C)C)C(=O)O, O=C1CCC(=O)N1O to produce CC(C)C[C@H](NC(=O)OC(C)(C)C)C(=O)ON1C(=O)CCC1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.