Using CC(C)(C)OC(=O)N1CCC(OS(C)(=O)=O)CC1, CCOC(=O)c1nc[nH]n1 to produce COC(=O)c1ncn(C2CCN(C(=O)OC(C)(C)C)CC2)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.