发明授权
US4319040A Process for the production of optically active threo-3-(3,4-dihydroxyphenyl)serine 失效
制备光学活性的3-(3,4-二羟基苯基)丝氨酸的方法

Process for the production of optically active
threo-3-(3,4-dihydroxyphenyl)serine
摘要:
Improved process for the production of optical aCTIVE (D- or L-) threo-3-(3,4-dihydroxyphenyl)serine, which comprises subjecting racemic threo-3-(3,4-dibenzyloxyphenyl)-N-carbobenzyloxyserine to optical resolution by using as a resolving reagent an optical active amino alcohol derivative, and then subjecting the resulting optical active (D- or L-) threo-3-(3,4-dibenzyloxyphenyl)-N-carbobenzyloxyserine to hydrogenolysis.
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