Using N=C(N)N, COCOCC(COc1cccc(F)c1C#N)c1ccc(Cl)cc1 to produce COCOCC(COc1cccc2nc(N)nc(N)c12)c1ccc(Cl)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.