1 4F0 (3s,4r)-1-[(4-amino-5h-pyrrolo[3,2-D]pyrimidin-7-yl)methyl]-4-[(methylsulfanyl)methyl]pyrrolidin-3-ol 1.000 2 TDI (3r,4s)-1-[(4-amino-5h-pyrrolo[3,2-D]pyrimidin-7-yl)methyl]-4-[(methylsulfanyl)methyl]pyrrolidin-3-ol 1.000 3 OS2 (3r,4s)-1-[(4-amino-5h-pyrrolo[3,2-D]pyrimidin-7-yl)methyl]-4-{[(prop-2-yn-1-yl)sulfanyl]methyl}pyrrolidin-3-ol 0.909 4 BIG (3r,4s)-1-[(4-amino-5h-pyrrolo[3,2-D]pyrimidin-7-yl)methyl]-4-[(butylsulfanyl)methyl]pyrrolidin-3-ol 0.870 5 223 (3r,4r)-1-[(4-amino-5h-pyrrolo[3,2-D]pyrimidin-7-yl)methyl]-4-(hydroxymethyl)pyrrolidin-3-ol 0.857 6 GMD (3r,4s)-1-[(4-amino-5h-pyrrolo[3,2-D]pyrimidin-7-yl)methyl]-4-{[(4-hydroxybutyl)sulfanyl]methyl}pyrrolidin-3-ol 0.833 7 OS3 (3r,4s)-1-[(4-amino-5h-pyrrolo[3,2-D]pyrimidin-7-yl)methyl]-4-{[(pent-4-yn-1-yl)sulfanyl]methyl}pyrrolidin-3-ol 0.833 8 C1Y (3r,4s)-1-[(4-amino-5h-pyrrolo[3,2-D]pyrimidin-7-yl)methyl]-4-propylpyrrolidin-3-ol 0.818 9 2EL (3r,4s)-1-[(4-amino-5h-pyrrolo[3,2-D]pyrimidin-7-yl)methyl]-4-({[2-(2-hydroxyethoxy)ethyl]sulfanyl}methyl)pyrrolidin-3- ol 0.800 10 HT6 (3r,4s)-1-[(4-amino-5h-pyrrolo[3,2-D]pyrimidin-7-yl)methyl]-4-[(hexylsulfanyl)methyl]pyrrolidin-3-ol 0.800 11 DIH 7-[[(3r,4r)-3-(hydroxymethyl)-4-oxidanyl-pyrrolidin-1-ium-1-yl]methyl]-3,5-dihydropyrrolo[3,2-D]pyrimidin-4-one 0.773 12 DF9 (3r,4s)-1-[(4-amino-5h-pyrrolo[3,2-D]pyrimidin-7-yl)methyl]-4-[(benzylsulfanyl)methyl]pyrrolidin-3-ol 0.769 13 HCE {(3r,4s)-1-[(4-amino-5h-pyrrolo[3,2-D]pyrimidin-7-yl)methyl]-4-hydroxypyrrolidin-3-yl}-L-methionine 0.769 14 AGV (2r,3r,4s)-1-[(4-amino-5h-pyrrolo[3,2-D]pyrimidin-7-yl)methyl]-2-(hydroxymethyl)pyrrolidine-3,4-diol 0.739 15 IM5 2-amino-7-{[(3r,4r)-3-hydroxy-4-(hydroxymethyl)pyrrolidin-1-yl]methyl}-3,5-dihydro-4h-pyrrolo[3,2-D]pyrimidin-4-one 0.739 16 4EH (3r,4s)-1-[(4-amino-5h-pyrrolo[3,2-D]pyrimidin-7-yl)methyl]-4-[(pyrazin-2-ylsulfanyl)methyl]pyrrolidin-3-ol 0.731 17 A1BBE {(3r,4r)-1-[(4-amino-5h-pyrrolo[3,2-D]pyrimidin-7-yl)methyl]-4-hydroxypyrrolidin-3-yl}methyl dihydrogen phosphate 0.720 18 4CT (3r,4s)-1-[(4-amino-5h-pyrrolo[3,2-D]pyrimidin-7-yl)methyl]-4-{[(4-chlorophenyl)sulfanyl]methyl}pyrrolidin-3-ol 0.704