1 2LF (6s,7s,8s,10r)-2-amino-8-hydroxy-4-oxo-3,6,7,8,9,10-hexahydro-4h-7,10-epoxyazepino[1,2-E]purin-6-yl dihydrogen phosphate 1.000 2 02I (6s,7s,8s,10r)-4-amino-8-hydroxy-7,8,9,10-tetrahydro-6h-7,10-epoxyazepino[1,2-E]purin-6-yl dihydrogen phosphate 0.875 3 F4Q [(1~{S},2~{R},4~{R},6~{S},8~{R})-8-(2-azanyl-6-oxidanylidene-1~{H}-purin-9-yl)-6-oxidanyl-9-oxatricyclo[4.3.0.0^{2,4}]nonan-2-yl] dihydrogen phosphate 0.815 4 TG 2-azanyl-9-[(2~{R},3~{R},4~{S})-3-oxidanyl-4-[oxidanyl-bis(oxidanylidene)-$L^{6}-phosphanyl]oxy-oxolan-2-yl]-1~{H}-purin-6-one 0.731 5 TCY (2r,3as,4ar,5ar,5bs)-2-(6-amino-9h-purin-9-yl)-3a-hydroxyhexahydrocyclopropa[4,5]cyclopenta[1,2-B]furan-5a(4h)-yl dihydrogen phosphate 0.714 6 3PD 2-amino-9-(2-deoxy-3-O-phosphonopentofuranosyl)-1,9-dihydro-6h-purin-6-one 0.704