4-Hexenoic acid, 6-(1,3-dihydro-4-hydroxy-6-methoxy-7-methyl-3-oxo-5-isobenzofuranyl)-4-methyl-, (4E)- and Phosphonic acid, [[[(1R)-2-(6-amino-9H-purin-9-yl)-1-methylethyl]oxy]methyl]- AIDS-186682 AIDS186682