((1S,4R)-4-[2-chloro-6-(1-ethyl-propylamino)-purin-9-yl]-cyclopent-2-enyl)-propionyl-carbamic acid tert-butyl ester 、 (1R,2S,3R,5S)-3-(6-{[bis-(4-methoxy-phenyl)-methyl]-amino}-2-chloro-purin-9-yl)-5-(di-Boc-amino)-cyclopentane-1,2-diol 在
乙腈 、
水 作用下,
生成 ((1S,2R,3S,4R)-4-[2-chloro-6-(1-ethyl-propylamino)-purin-9-yl]-2,3-dihydroxy-cyclopentyl)-propionyl-carbamic acid tert-butyl ester