Using CC(C)(C)N1CCC(S)CC1, Brc1ccc2c(c1)-c1nc(-c3cccnc3)cn1CCO2 to produce CC(C)(C)N1CCC(Sc2ccc3c(c2)-c2nc(-c4cccnc4)cn2CCO3)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.