Using NCCc1ccc(Cl)cc1, O=C1CCN(C(=O)c2ccc(-n3cncn3)cc2)CC1 to produce O=C(c1ccc(-n2cncn2)cc1)N1CCC(NCCc2ccc(Cl)cc2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.