4a(2H)-Picenecarboxylic acid, 1,3,4,5,6,6a,6b,7,8,8a,9,10,11,12,12a,12b,13,14b-octadecahydro-10,11-dihydroxy-9-(hydroxymethyl)-2,6a,6b,9,12a-pentamethyl-, (2R,4aS,6aS,6bR,9R,10R,11R,12aR)- AIDS-209512 AIDS209512