((2S,3S)-2-Amino-3-methyl-pentanoyl)-sulfamic acid, (2R,3S,4R,5S)-5-[2-(5-[2,2']bipyridinyl-5-yl-tetrazol-2-yl)-ethyl]-3,4-dihydroxy-tetrahydro-furan-2-ylmethyl ester AIDS-104618 AIDS104618