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