Using CC(C)[C@H](NC(=O)OC(C)(C)C)C(=O)O, O=C1CCC(=O)N1O to produce CC(C)[C@H](NC(=O)OC(C)(C)C)C(=O)C1CC(=O)NC1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.