4-Amino-1-(2,5-anhydro-β-D-arabinofuranosyl)pyrimidin-2(1H)-one
4-Amino-1-(5-chloro-5-deoxy-β-D-arabinofuranosyl)pyrimidin-2-(1H)-one
(6R,7S,8S,9R)-4-(4-Acetylaminobenzenesulfonyl)-7,8-diacetoxy-4,5,6,7,8,9-hexahydro-2(10H)-imino-furo<1,2,5:1,2,7>oxadiazepino<3,4-a>pyrimidine
(6R,7S,8S,9R)-4-(4-Aminobenzenesulfonyl)-4,5,6,7,8,9-hexahydro-7,8-dihydroxy-2(10H)-imino-furo<1,2,5:1,2,7>oxadiazepino<3,4-a>pyrimidine