4-fluoro-2-{2-methyl-6-[(5-methyl-1,3,4-thiadiazol-2-yl)sulfanyl]pyrazolo[1,5-a]pyrimidin-7-yl}phenol
4-fluoro-2-{6-[(5-methyl-1,3,4-thiadiazol-2-yl)sulfanyl]pyrazolo[1,5-a]pyrimidin-7-yl}phenol
4-fluoro-2-{3-[(5-methyl-1,3,4-thiadiazol-2-yl)sulfanyl]pyrimido[1,2-a]benzimidazol-4-yl}phenol
4-fluoro-2-{6-[(5-methyl-1,3,4-thiadiazol-2-yl)sulfanyl]imidazo[1,2-a]pyrimidin-5-yl}phenol