7,13a-Dihydroxy-6-(isobutyryloxy)-2,9,9,12-tetramethyl-5-methylene-8,13-dioxo-3-(propionyloxy)-2,3,3a,4,5,6,7,8,9,12,13,13a-dodecahydro-1H-cyclopenta[12]annulen-4-yl benzoate AIDS-013349 AIDS013349 Enukokurin NSC616973