1,4-Methano-s-indacene-3a(1H)-carboxylic acid, 4-formyl-8a-[(hexyloxy)methyl]-4,4a,5,6,7,7a,8,8a-octahydro-6-methoxy-7-methyl-3-(1-methylethyl)-, (3aR,4aR,6S,7S,7aS)- AIDS-154626 AIDS154626