InChI=1/C21H23N5O6/c1-21(2)31-15-13(8-27)30-19(16(15)32-21)26-11-24-14-17(22-10-23-18(14)26)25-20(28)29-9-12-6-4-3-5-7-12/h3-7,10-11,13,15-16,19,27H,8-9H2,1-2H3,(H,22,23,25,28)/t13-,15-,16-,19-/m1/s N-[(benzyloxy)carbonyl]-9-[2,3-O-(1-methylethylidene)-alpha-ribofuranosyl]-9H-purin-6-amine adenosine, 2',3'-O-(1-methylethylidene)-N-[(phenylmethoxy)carbonyl]-