acetic acid (2R,3R,4R,5S)-4-acetoxy-5-(3-acetoxymethyl-isoxazol-5-yl)-2-(2,6-dichloro-purin-9-yl)-tetrahydro-furan-3-yl ester 、
2,2-Bis-<4-hydroxy-phenyl>-aethylamin 在
(2R,3R,4S,5S)-2-[2-chloro-6-(2,2-diphenylethylamino)-purin-9-yl]-5-(3-hydroxymethyl-isoxazol-5-yl)-tetrahydro-furan-3,4-diol 作用下,
生成 (2R,3R,4S,5S)-2-{6-[2,2-bis(4-Hydroxy-phenyl)-ethylamino]-2-chloro-purin-9-yl}-5-(3-hydroxymethyl-isoxazol-5-yl)-tetrahydrofuran-3,4-diol