(1S)-2-(4-{6-amino-8-[(6-bromo-1,3-benzodioxol-5-yl)thio]-9H-purin-9-yl}piperidin-1-yl)-1-methyl-2-oxoethyl acetate 在
甲醇 、
potassium carbonate 作用下,
反应 4.0h,
以75%的产率得到(2S)-1-(4-{6-amino-8-[(6-bromo-1,3-benzodioxol-5-yl)thio]-9H-purin-9-yl}piperidin-1-yl)-1-oxopropan-2-ol