(1S,3'R,4'S,5'R,6'R)-3',4',5'-triacetoxy-6'-(acetoxymethyl)-6-[(4-(tert-butyldimethylsilyloxy)phenyl)methyl]-5-chloro-3',4',5',6'-tetrahydro-spiro[isobenzofuran-1(3H),2'-[2H]pyran] 在
四丁基氟化铵 作用下,
以
四氢呋喃 为溶剂,
反应 0.25h,
以84.9%的产率得到(1S,3'R,4'S,5'R,6'R)-3',4',5'-triacetoxy-6'-(acetoxymethyl)-5-chloro-3',4',5',6'-tetrahydro-6-[(4-hydroxyphenyl)methyl]-spiro[isobenzofuran-1(3H),2'-[2H]pyran]