(3,3'''-Bis-benzyloxy-2,3'',2'''-tris-tert-butoxycarbonylmethoxy-3',2''-dimethoxy-[1,1';4',1'';4'',1''']quaternaphthalen-2'-yloxy)-acetic acid tert-butyl ester 在
palladium on activated charcoal
氢气 作用下,
以
四氢呋喃 为溶剂,
反应 3.0h,
以43%的产率得到(3-Benzyloxy-2,3'',2'''-tris-tert-butoxycarbonylmethoxy-3'''-hydroxy-3',2''-dimethoxy-[1,1';4',1'';4'',1''']quaternaphthalen-2'-yloxy)-acetic acid tert-butyl ester