(1S)-1-<(2R)-2-(2,4-difluorophenyl)-2-oxiranyl>ethanol 、
6-氯嘌呤 以(2S)-2-[(1R)-1-[6-chloro-9(9H) -purinyl]ethyl]-2-(2,4-difluorophenyl) oxirane (440 mg) was obtained as a white powder by the same way as in Reference Example 2的产率得到(2S)-2-[(1R)-1-[6-chloro-9(9H)-purinyl]ethyl]-2-(2,4-difluorophenyl) oxirane