Acetic acid (2R,3R,4R,5R)-4-acetoxy-5-acetoxymethyl-2-[6-(4-chloro-benzoylamino)-purin-9-yl]-tetrahydro-furan-3-yl ester 在
对二硝基苯 作用下,
以
乙腈 为溶剂,
反应 3.0h,
以95%的产率得到Acetic acid (2R,3R,4R,5R)-4-acetoxy-5-acetoxymethyl-2-(2-chloro-6-oxo-6H-7,9,12,15,17-pentaaza-cyclopenta[a]phenanthren-17-yl)-tetrahydro-furan-3-yl ester