乙酸酐 、 Acetic acid (2R,3R,4S,5R,6R)-4,5-diacetoxy-6-acetoxymethyl-2-[(R)-cyano-(3-hydroxy-phenyl)-methoxy]-tetrahydro-pyran-3-yl ester 在
ammonium hydroxide 作用下,
生成
(8S)-2-(2,3,4,6-Tetra-O-acetyl-β-D-glucopyranosyl)-2-(3-acetoxyphenyl)acetonitril 、
(8R)-2-(2,3,4,6-Tetra-O-acetyl-β-D-glucopyranosyl)-2-(3-acetoxyphenyl)acetonitril