AIDS-218078 AIDS218078 Hexanoic acid, 6-(Ala-Thr-Leu-Asn-Phe-OMe)-6-oxo-, [(2S,8S)-1,3,4,6,7,8-hexahydro-8-(hydroxymethyl)-2H-pyrimido[1,2-a]pyrimidin-2-yl]methyl ester