Using CCOC=C(C#N)C#N, NNc1cc(Cl)c(Cl)c(Cl)c1Cl to produce N#Cc1cnn(-c2cc(Cl)c(Cl)c(Cl)c2Cl)c1N, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.