Using C1CC2CNCC1O2, O=C1CCN(c2nc(Cl)nc(Cl)n2)CC1 to produce O=C1CCN(c2nc(Cl)nc(N3CC4CCC(C3)O4)n2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.