(1S,6R)-6-acetoxy-4-[{(1'R,2'S,4'R,6'S)-6-acetoxy-1,2-dihydroxy-4-[(4-methoxybenzoyl)oxy]cyclohept-1-yl}methyl]cyclohept-3-en-1-yl 4-methoxybenzoate 在
magnesium methanolate 、
草酸 作用下,
以
甲醇 为溶剂,
反应 8.0h,
以76%的产率得到(1S,6R)-6-hydroxy-4-[{(1R,2S,4S,6R)-1,2,6-trihydroxy-4-[(4-methoxybenzoyl)oxy]cyclohept-1-yl}methyl]cyclohept-3-en-1-yl 4-methoxybenzoate