Using N=C(N)c1ccccn1, CCOC(=O)CC(=O)c1cc(Cl)ccn1 to produce Oc1cc(-c2cc(Cl)ccn2)nc(-c2ccccn2)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.