9,9'-((2R,3R,3aR,7aR,9R,10R,10aR,14aR)-3,10-Difluoro-5,12-dihydroxy-5,12-dioxidooctahydro-2H,7H-difuro[3,2-d:3',2'-j][1,3,7,9]tetraoxa[2,8]diphosphacyclododecine-2,9-diyl)bis(2-amino-3,9-dihydro-6H-purin-6-one) 1g

9,9'-((2R,3R,3aR,7aR,9R,10R,10aR,14aR)-3,10-Difluoro-5,12-dihydroxy-5,12-dioxidooctahydro-2H,7H-difuro[3,2-d:3',2'-j][1,3,7,9]tetraoxa[2,8]diphosphacyclododecine-2,9-diyl)bis(2-amino-3,9-dihydro-6H-purin-6-one) 1g