6-Amino-9-((3aR,4R,6R,6aR)-6-{isopropoxy-[((S)-1-trityl-pyrrolidine-2-carbonyl)-amino]-phosphoryloxymethyl}-2,2-dimethyl-tetrahydro-furo[3,4-d][1,3]dioxol-4-yl)-8-oxo-8,9-dihydro-purine-7-carboxylic acid tert-butyl ester 在
甲酸 作用下,
反应 12.0h,
以232 mg的产率得到(2S)-N-[[(2R,3S,4R,5R)-5-(6-amino-8-oxo-7H-purin-9-yl)-3,4-dihydroxyoxolan-2-yl]methoxy-oxido-propan-2-yloxyphosphaniumyl]pyrrolidine-2-carboxamide