(R)-2-[(2R,3R,3aR,6S,7S,9bR)-6-(2-Carboxy-ethyl)-2-hydroxy-7-isopropenyl-3a,6,9b-trimethyl-2,3,3a,4,6,7,8,9b-octahydro-1H-benz[e]inden-3-yl]-6-methyl-hept-5-enoic acid AIDS-113409 AIDS113409 Poricoic acid A