648414-63-5

2,4(1H,3H)-Pyrimidinedione,5-[(1E)-2-bromoethenyl]-1-[(1R,3S,4R)-3-hydroxy-4-[[(8-methyl-2-oxido-4H-1,3,2-benzodioxaphosphorin-2-yl)oxy]methyl]cyclopentyl]-