(5'-(p-Fluorosulfonyl)benzoyl)-1,N(6)-ethenoadenosine 3H-Imidazo(2,1-i)purine, 3-(5-O-(4-(fluorosulfonyl)benzoyl)-beta-D-ribofuranosyl)- 5'-(4-Fluorosulfonylbenzoyl)-1,N(6)-ethenoadenosine 76021-83-5 Fsbn-ethenoadenosine