Using NC1CCN(c2ncnc3[nH]ccc23)CC1, O=C(O)c1cccnc1 to produce O=C(NC1CCN(c2nc[nH]c3nccc2-3)CC1)c1cccnc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.