1-Deoxy-1-(3,4-dihydro-2,4-dioxo-1(2H)-pyrimidinyl)-N-[[2-[[1,2,3-trideoxy-1-(3,4-dihydro-5-methyl-2,4-dioxo-1(2H)-pyrimidinyl)-3-[4-[[[5-[(3aS,4S,6aR)-hexahydro-2-oxo-1H-thieno[3,4-d]imidazol-4-yl]-1-oxopentyl]amino]methyl]-1H-1,2,3-triazol-1-yl]-β-D-erythro-pentofuranuronoyl]amino]ethyl]sulfonyl]-..