(1R,3S)-3-[2-Amino-6-(cyclopropylamino)-9H-purin-9-yl]cyclopentanemethanol

(1R,2S,4R)-4-(2-Amino-6-chloro-9H-purin-9-yl)-2-hydroxycyclopentanemethanol

(3aR,4R,6R,6aS)-6-(4-Amino-7H-pyrrolo[2,3-d]pyrimidin-7-yl)tetrahydro-2,2-dimethyl-4H-cyclopenta-1,3-dioxole-4-methanol

6-Chloro-9-[(3aS,4R,6R,6aR)-tetrahydro-6-(methoxymethyl)-2,2-dimethyl-4H-cyclopenta-1,3-dioxol-4-yl]-9H-purine

(1S,3S)-3-(6-Amino-9H-purin-9-yl)-N-hydroxycyclopentanecarboxamide

6H-Purin-6-one,2-amino-9-[3,4-dihydroxy-3-(hydroxymethyl)cyclopentyl]-1,9-dihydro-,[1S-(1α,3β,4β)]-

Benzamide,N-[9-[2,3-dihydroxy-4-(hydroxymethyl)cyclopentyl]-9H-purin-6-yl]-,[1R-(1α,2β,3β,4α)]-

(1S,2R,3S,4R)-2,3-Dihydroxy-4-[6-[[(3-iodophenyl)methyl]amino]-9H-purin-9-yl]-N-methylcyclopentanecarboxamide

9-[(3aS,4R,6R,6aR)-Tetrahydro-6-(methoxymethyl)-2,2-dimethyl-4H-cyclopenta-1,3-dioxol-4-yl]-N-[(3S)-1-[5-(trifluoromethyl)-2-pyridinyl]-3-pyrrolidinyl]-9H-purin-6-amine

Cyclopentanecarboxamide,4-[7-[[2-(5-chloro-2-thienyl)-1-methylethyl]amino]-3H-imidazo[4,5-b]pyridin-3-yl]-N-ethyl-2,3-dihydroxy-,[1S-[1α,2β,3β,4α(S*)]]-

Rel-1-[(1R,2R,4S)-2-Hydroxy-4-(hydroxymethyl)cyclopentyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

1-[(1S,2R,3S,4S)-2,3-Dihydroxy-4-(hydroxymethyl)cyclopentyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

(1S,2R,3R,5R)-3-(Hydroxymethyl)-5-(9H-purin-9-yl)-1,2-cyclopentanediol

1-[(1R,3S,4R)-3-Hydroxy-4-(hydroxymethyl)cyclopentyl]-5-iodo-2,4(1H,3H)-pyrimidinedione

2,4(1H,3H)-Pyrimidinedione,1-[3-hydroxy-4-(hydroxymethyl)cyclopentyl]-5-(2-iodoethenyl)-,[1R-[1α(E),3β,4α]]-

(1S,3R,4R)-3-(6-Amino-9H-purin-9-yl)-4-hydroxycyclopentanemethanol

Rel-(1R,2R,3S,5S)-3-(6-Amino-9H-purin-9-yl)-5-(hydroxymethyl)-1,2-cyclopentanediol

Rel-(1R,2S,3S,5S)-3-(6-Amino-9H-purin-9-yl)-5-(hydroxymethyl)-1,2-cyclopentanediol

4-Amino-1-[(1R,2S,3R,4R)-2,3-dihydroxy-4-(hydroxymethyl)cyclopentyl]-5-fluoro-2(1H)-pyrimidinone

Rel-3-[1,2,3,4-Tetrahydro-1-[(1R,3S,4R)-3-hydroxy-4-(hydroxymethyl)cyclopentyl]-2,4-dioxo-5-pyrimidinyl]-2-propenoicacid