6-[2-[3-(4-benzyloxy-2-methoxyphenoxy)-2-(S)-hydroxypropylamino]ethyl]-2,3-dihydro-1,4-benzodioxine-2-(R)-carboxylic acid ethyl ester 在
palladium-carbon
氢气 、 silica gel 、
chloroform methanol 作用下,
以
乙醇 为溶剂,
反应 6.0h,
以the title compound (129 mg) was obtained from the effluent with chloroform/methanol/aqueous ammonia=85/15/0.1 (v/v)的产率得到6-[2-[2-(S)-hydroxy-3-(4-hydroxy-2-methoxyphenoxy)propylamino]ethyl]-2,3-dihydro-1,4-benzodioxine-2-(R)-carboxylic acid ethyl ester