4-Chloro-4,7,7-trimethylbicyclo[4.1.0]hept-3-yl 1-phenyl-1H-tetraazol-5-yl sulfide 5-((4-Chloro-4,7,7-trimethylbicyclo[4.1.0]hept-3-yl)thio)-1-phenyl-1H-tetraazole AIDS-141175 AIDS141175 NSC655932