乙酸酐 、 Benzoic acid (2S,3R,4R,5R,6R)-5-[(2S,3R,4R,5S,6R)-4,5-diacetoxy-6-acetoxymethyl-3-(1,3-dioxo-1,3-dihydro-isoindol-2-yl)-tetrahydro-pyran-2-yloxy]-4-hydroxy-6-methoxy-2-methyl-tetrahydro-pyran-3-yl ester 在
一水合肼 作用下,
生成
β-D-GlcpNAc-(1<*>2)α-L-RhapOMe