Using CCOC(=O)C1CCN(c2nc(Cl)nc(Cl)n2)CC1, CCN(C(C)C)C(C)C to produce CCOC(=O)C1CCN(c2nc(Cl)nc(NC)n2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.