申请人:Hoffman-La Roche Inc.
公开号:US03947473A1
公开(公告)日:1976-03-30
The (6-hydroxy-chroman-2-yl) acetic or carboxylic acid derivatives useful as antioxidants and a method for preparing these derivatives from hydroquinones and intermediates in this synthesis as well as the use of these derivatives as intermediates in the preparation of optically active alpha-tocopherol.
(6-羟基-色苷-2-基) 乙酸或羧酸衍生物可用作抗氧化剂,以及从对苯二酚和合成中间体制备这些衍生物的方法,以及在制备光学活性α-生育酚中使用这些衍生物作为中间体。