Acetic acid 3,4-diacetoxy-1-{9-[(2R,4S,5R)-4-(tert-butyl-dimethyl-silanyloxy)-5-(tert-butyl-dimethyl-silanyloxymethyl)-tetrahydro-furan-2-yl]-9H-purin-6-ylamino}-1,2,3,4-tetrahydro-benzo[c]phenanthren-2-yl ester 在
吡啶 、
4-二甲氨基吡啶 、
四丁基氟化铵 作用下,
以
四氢呋喃 为溶剂,
反应 3.0h,
生成 Acetic acid (1S,2R,3S,4R)-3,4-diacetoxy-1-(9-{(2R,4S,5R)-5-[bis-(4-methoxy-phenyl)-phenyl-methoxymethyl]-4-hydroxy-tetrahydro-furan-2-yl}-9H-purin-6-ylamino)-1,2,3,4-tetrahydro-benzo[c]phenanthren-2-yl ester