((4-Nitrophenyl)methyl)succinic acid

((4-Phenylbutyl)hydroxyphosphoryl)acetic acid

((4S, 5S)-4-Benzyl-2-oxo-5-oxazolidinyl)methyl 4-nitrobenzenesulfonate

((5-(2, 4-Dioxo-5-vinyl-3, 4-dihydro-2H-pyrimidin-1-yl)-3-hydroxy-tetrahydro-furan-2-ylmethoxy)-hydroxy-phosphoryl)acetic acid

((5-(2, 4-Dioxo-5-vinyl-3, 4-dihydro-2H-pyrimidin-1-yl)-3-hydroxytetrahydro-furan-2-ylmethoxy)-hydroxy-phosphoryl}acetic acid

((5-(2-Amino-4-oxo-1, 4-dihydro-pyrimidin-5-yl)-3, 4-dihydroxy-tetrahydro-furan-2-ylmethoxy)-hydroxy-phosphoryl)-acetic acid

((5-(2-Amino-6-oxo-1, 6-dihydro-purin-9-yl)-3, 4-dihydroxy-tetrahydro-furan-2-ylmethoxy)-hydroxy-phosphoryl)-acetic acid

((5-(3-Ethyl-4-oxo-2-thioxothiazolidin-5-ylidene)-4, 5-dihydro-4-methyl-1, 3, 4-thiadiazol-2-yl)thio)acetic acid

((5-(4-Amino-2-oxo-3, 4-dihydro-2H-pyrimidin-1-yl)-3, 4-dihydroxy-tetrahydro-furan-2-ylmethoxy)hydroxyphosphoryl)acetic acid

((5-(4-Amino-2-oxo-3, 4-dihydro-2H-pyrimidin-1-yl)-3, 4-dihydroxytetrahydro-furan-2-ylmethoxy)-hydroxy-phosphoryl}acetic acid

((5-(4-Amino-5-bromo-2-oxo-3, 4-dihydro-2H-pyrimidin-1-yl)-3-hydroxy-tetrahydro-furan-2-ylmethoxy)-hydroxy-phosphoryl)-acetic acid

((5-(5-(2-Bromo-vinyl)-2, 4-dioxo-3, 4-dihydro-2H-pyrimidin-1-yl)-3-hydroxy-tetrahydro-furan-2-ylmethoxy)-hydroxy-phosphoryl)acetic acid

((5-(5-(2-Bromovinyl)-2, 4-dioxo-3, 4-dihydro-2H-pyrimidin-1-yl)-3-hydroxy-tetrahydro-furan-2-ylmethoxy)hydroxyphosphoryl)acetic acid

((5-(5-Acetyl-6-amino-2-oxo-1, 2, 3, 6-tetrahydro-pyridin-3-yl)-3, 4-dihydroxy-tetrahydro-furan-2-ylmethoxy)hydroxyphosphoryl)acetic acid

((5-(5-Acetyl-6-amino-2-oxo-1, 2, 3, 6-tetrahydropyridin-3-yl)-3, 4-dihydroxytetrahydro-furan-2-ylmethoxy)-hydroxy-phosphoryl}acetic acid

((5-(5-Bromo-2, 4-dioxo-3, 4-dihydro-2H-pyrimidin-1-yl)-3-hydroxy-tetrahydro-furan-2-ylmethoxy)-hydroxy-phosphoryl)-acetic acid

((5-(5-Ethyl-2, 4-dioxo-3, 4-dihydro-2H-pyrimidin-1-yl)-3-hydroxy-tetrahydro-furan-2-ylmethoxy)-hydroxy-phosphoryl)acetic acid

((5-(5-Ethyl-2, 4-dioxo-3, 4-dihydro-2H-pyrimidin-1-yl)-3-hydroxytetrahydro-furan-2-ylmethoxy)-hydroxy-phosphoryl}acetic acid

((5-(5-Ethynyl-2, 4-dioxo-3, 4-dihydro-2H-pyrimidin-1-yl)-3-hydroxy-tetrahydro-furan-2-ylmethoxy)-hydroxy-phosphoryl)acetic acid

((5-(5-Ethynyl-2, 4-dioxo-3, 4-dihydro-2H-pyrimidin-1-yl)-3-hydroxytetrahydro-furan-2-ylmethoxy)-hydroxy-phosphoryl}acetic acid