((2S,3S)-2-Amino-3-methyl-pentanoyl)-sulfamic acid, (2R,3S,4R,5S)-3,4-dihydroxy-5-{2-[5-(4-phenyl-piperazin-1-yl)-tetrazol-2-yl]-ethyl}-tetrahydro-furan-2-ylmethyl ester AIDS-104617 AIDS104617