Using CCCCNC, CC(C)(C)OC(=O)N([C@@H](CCCNC(=N)N)C(=O)O)[N+](=O)[O-] to produce CCCCN(C)C(=O)[C@H](CCCNC(=N)N)N(C(=O)OC(C)(C)C)[N+](=O)[O-], please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.