申请人:SUMITOMO PHARMACEUTICALS COMPANY, LIMITED
公开号:EP0128684A1
公开(公告)日:1984-12-19
A process for producing racemic or optically active 3-(3,4-dihydroxyphenyl) serine [DOPS] represented by the formula
comprises removing the phthaloyl group from a corresponding compound [II] wherein the hydrogens of the amino group have been replaced by a phthaloyl group. This phthaloyl compound [II] can be obtained by reaction of a compound [III],
wherein each of R1 and R2 are, independently of one another, hydrogen or methyl or together provide a methylene group. The compound III can be obtained by phthaloylating the corresponding amine compound [IV].
The compounds II and III can be resolved by treatment with an optically active amine and optically active DOPS can be obtained, optionally in erythro or threo form, starting from an optically active compound II, III or IV.
一种生产外消旋或光学活性 3-(3,4-二羟基苯基)丝氨酸[DOPS]的工艺,其化学式为
包括从相应的化合物[II]中去除邻苯二甲酰基,其中氨基的氢已被邻苯二甲酰基取代。这种邻苯二甲酰基化合物[II]可以通过化合物[III]的反应获得、
其中 R1 和 R2 各自独立地为氢或甲基,或共同提供一个亚甲基。化合物 III 可以通过邻苯二甲酰化相应的胺化合物 [IV] 而得到。
化合物 II 和 III 可以通过光学活性胺的处理进行分解,光学活性 DOPS 可以从光学活性化合物 II、III 或 IV 开始得到,可以选择以赤式或苏式形式得到。