9-[(1'R,2'S,3'R,4'R)-2',3'-dihydroxy-4'-(hydroxymethyl)cyclopentyl]-2-iodo-1H-purin-6(9H)-one 、
(E)-4-(tributylstannyl)but-3-en-2-one 在
bis-triphenylphosphine-palladium(II) chloride 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 24.0h,
以41.2%的产率得到9-[(1'R,2'S,3'R,4'R)-2',3'-dihydroxy-4'-(hydroxymethyl)cyclopentyl]-2-[(E)-3-oxobut-1-enyl]-1H-purin-6(9H)-one