Diphenyl-carbamic acid 2-acetylamino-9-((1R,4S)-3-formyl-4-hydroxymethyl-cyclopent-2-enyl)-9H-purin-6-yl ester 、
叔丁基二苯基氯硅烷 在
吡啶 作用下,
反应 16.0h,
以112 mg的产率得到(+)-(3R,5S)-diphenylcarbamic acid 2'-acetylamino-9'-[4-(tert-butyldiphenylsilanyloxymethyl)-3-formyl-cyclopent-2-enyl]-9H-purin-6'-yl