Using NNc1ccc(Cl)cc1, O=C(O)CC1CCCc2ccncc2C1=O to produce O=C1CC2CCCc3ccncc3C2=NN1c1ccc(Cl)c(Cl)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.