Using Clc1ncnc(Cl)c1C1OCCO1, Oc1ccc(-c2csnn2)cc1 to produce Clc1ncnc(Oc2ccc(-c3csnn3)cc2)c1C1OCCO1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.