.alpha.-D-Glucopyranoside, (1R,2R,3S,4R,6S)-4,6-diamino-3-hydroxy-2-[[6-(9H-purin-6-ylamino)hexyl]oxy]cyclohexyl 2,6-diamino-2,6-dideoxy-4-O-[6-(9H-purin-6-ylamino)hexyl]- AIDS-224609 AIDS224609