(1R,6R)-6-Acetoxy-4-{(1R,2S,4S,6R)-6-acetoxy-1,2-dihydroxy-4-[(4-methoxybenzoyl)oxy]cyclohept-1-yl}methylcyclohept-3-en-1-yl 4-methoxybenzoate 在
magnesium methanolate 作用下,
以
甲醇 为溶剂,
反应 3.5h,
以74%的产率得到(1R,6R)-6-Hydroxy-4-{(1R,2S,4S,6S)-1,2,3-trihydroxy-4-[(4-methoxybenzoyl)oxy]cyclohept-1'-yl}methylcyclohept-3-en-1-yl 4-methoxybenzoate