01K 01k [(2R,3S,4R,5R)-5-(6-amino-9H-purin-9-yl)-4-hydroxy-3-(phosphonooxy)tetrahydrofuran-2-yl]methyl (3R,20R)-20-carbamoyl-3-hydroxy-2,2-dimethyl-4,8,14,22-tetraoxo-12-thia-5,9,15,21-tetraazatricos-1-yl dihydrogen diphosphate 01K