4a(2H)-Picenecarboxylic acid, 1,3,4,5,6,6a,6b,7,8,8a,9,10,11,12,12a,12b,13,14b-octadecahydro-10-hydroxy-2,2,6b,9,9,12a-hexamethyl-, (4aR,6bR,10R,12aR)- AIDS-181906 AIDS181906