2,4(1H,3H)-Pyrimidinedione, 1-[2,5-anhydro-4-C-[[bis(4-methoxyphenyl)phenylmethoxy]methyl]-3-O-[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]-3-C-[2-[(1,4-dioxopentyl)oxy]ethyl]-α-L-lyxofuranosyl]-5-methyl-

[(2S,3aR,4R,6R,6aS)-4-[[Bis(4-methoxyphenyl)phenylmethoxy]methyl]-3a-[[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]oxy]-6-(3,4-dihydro-5-methyl-2,4-dioxo-1(2H)-pyrimidinyl)hexahydrofuro[3,4-b]furan-2-yl]methyl 4-oxopentanoate

[(2S,3aR,4R,6R,6aS)-4-[[Bis(4-methoxyphenyl)phenylmethoxy]methyl]-6-(3,4-dihydro-5-methyl-2,4-dioxo-1(2H)-pyrimidinyl)hexahydro-3a-hydroxyfuro[3,4-b]furan-2-yl]methyl 4-oxopentanoate

[(2S,3aR,4R,6R,6aS)-6-(3,4-Dihydro-5-methyl-2,4-dioxo-1(2H)-pyrimidinyl)hexahydro-3a-hydroxy-4-(hydroxymethyl)furo[3,4-b]furan-2-yl]methyl 4-oxopentanoate

[(2S,3aR,4R,6R,6aS)-6-(3,4-Dihydro-5-methyl-2,4-dioxo-1(2H)-pyrimidinyl)hexahydro-3a-(phenylmethoxy)-4-[(phenylmethoxy)methyl]furo[3,4-b]furan-2-yl]methyl 4-oxopentanoate