(1S,3'R,4'S,5'S,6'R)-3',4',5'-tris(benzyloxy)-6'-(benzyloxymethyl)-3',4',5',6'-tetrahydro-6-[(4-isopropylphenyl)methyl]-5-methyl-spiro[isobenzofuran-1(3H),2'-[2H]pyran] 在
盐酸 、 palladium-carbon
氢气 、 resultant mixture 、 silica gel 、
methanol-dichloromethane 作用下,
以
乙酸乙酯 、
甲醇 为溶剂,
反应 13.0h,
以to thereby obtain the titled compound (10.3 mg, 12.1%)的产率得到(1S,3'R,4'S,5'S,6'R)-3',4',5',6'-tetrahydro-6'-(hydroxymethyl)-6-[(4-isopropylphenyl)methyl]-5-methyl-spiro[isobenzofuran-1(3H),2'-[2H]pyran]-3',4',5'-triol