Using Nc1nc2c(s1)CC(N1CCN(c3ccccn3)CC1)CC2, O=C(Cl)c1ccccc1 to produce O=C(Nc1nc2c(s1)CC(N1CCN(c3ccccn3)CC1)CC2)c1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.