2,5-Anhydro-4-({4-[4-(4-{1-[(2S,3S)-2-(benzyloxy)pentan-3-yl]-5-oxo-1,5-dihydro-4H-1,2,4-triazol-4-yl}phenyl)piperazin-1-yl]phenoxy}methyl)-1,3,4-trideoxy-2-(2,4-difluorophenyl)-1-(1H-1,2,4-triazol-1-yl)-D-threo-pentitol