5a,7a-Dimethyl-5,5a,5b,6,7,7a,8,9,10,10a,10b,11,12,12a-tetradecahydro-4H-cyclopenta[7,8]phenanthro[1,2-c][1,2,5]oxadiazol-8-ol AIDS-160467 AIDS160467 NSC631055 NSC631056 {5-.Alpha.-Androstano[3,4-c]-1',2',5'-oxadiazol-17-ol} {5-.Beta.-Androstano[3,4-c]-1',2',5'-oxadiazol-17-ol}