7,11-Methano-1H-cyclodeca[3,4]benz[1,2-b]oxete-4,5,6,9,12,12b(4H)-hexol, 2a,3,4a,5,6,9,10,11,12,12a-decahydro-4a,8,13,13-tetramethyl-, 4,5,6,9,12b-pentaacetate 12-benzoate AIDS-136692 AIDS136692 Baccatin VI, 1-dehydroxy- NSC638793