This invention describes various processes for synthesis and resolution of racemic amino-substituted fused bicyclic ring systems. One process utilizes selective hydrogenation of an amino-substituted fused bicyclic aromatic ring system. An alternative process prepares the racemic amino-substituted fused bicyclic ring system via nitrosation. In addition, the present invention describes the enzymatic resolution of a racemic mixture to produce the (R)- and (S)-forms of amino-substituted fused bicyclic rings as well as a racemization process to recycle the unpreferred enantioner. Further provided by this invention is an asymmetric synthesis of the (R)- or (S)-enantiomer of primary amino-substituted fused bicyclic ring systems.
本发明描述了合成和分离外消旋
氨基取代融合双环环系统的各种过程。其中一种过程利用
氨基取代融合双环芳香环系统的选择性氢化。另一种替代方法通过亚硝化制备外消旋
氨基取代融合双环环系统。此外,本发明还描述了酶解外消旋混合物以产生
氨基取代融合双环环的(R)-和(S)-形式,以及消旋化过程以回收非优先对映体。本发明还提供了(R)-或(S)-对映体的原生
氨基取代融合双环环系统的不对称合成。