1-acetoxy-6,8-dimethoxy-3-methyl-11-(2',3',4',6'-tetra-O-acetyl-β-D-glucopyranosyloxy)-1,2,3,4,6,6a,12a,12b-octahydrobenz[a]anthracene-7,12-dione 在
氧气 、
1,8-二氮杂双环[5.4.0]十一碳-7-烯 作用下,
以
四氢呋喃 为溶剂,
反应 1.5h,
以0.175 g的产率得到(1S,3S)-1-hydroxy-8-methoxy-3-methyl-11-(2',3',4',6'-tetra-O-acetyl-β-D-glucopyranosyloxy)-1,2,3,4-tetrahydrobenz[a]anthracene-7,12-dione