Using OC1(c2nc(-c3ccccc3)cs2)CCC2(CC1)OCCO2, BrCC1CC1 to produce c1ccc(-c2csc(C3(OCC4CC4)CCC4(CC3)OCCO4)n2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.