Using NCc1cccnc1, O=C(O)c1cnc(N2CCN(CC3CC3)C2=O)s1 to produce O=C(NCc1cccnc1)c1cnc(N2CCN(CC3CC3)C2=O)s1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.