对溴乙基苯 、
(1S,3'R,4'S,5'R,6'R)-6-acetyl-3',4',5'-tris-benzyloxy-6'-benzyloxymethyl-5-methylthio-3',4',5',6'-tetrahydro-spiro[isobenzofuro-1(3H),2'-[2H]pyran] 在
palladium diacetate 、
4,5-双二苯基膦-9,9-二甲基氧杂蒽 potassium phosphate 作用下,
以
甲苯 为溶剂,
反应 2.0h,
以32%的产率得到(1S,3'R,4'S,5'R,6'R)-6-[2-(4-ethylphenyl)-1-oxoethyl]-3',4',5'-tris-benzyloxy-6'-benzyloxymethyl-5-methylthio-3',4',5',6'-tetrahydrospiro[isobenzofuro-1(3H),2'-[2H]pyran]