Methods of making indazoles are described. The methods involved reacting an aromatic aldehyde with a nitrogen source to form a nitroso aromatic aldehyde. The nitroso aromatic aldehyde is reacted with a reducing agent to form an indazole which ultimately can be used to form desired indazoles which are preferably pharmaceutically active products. The process of the present invention further permits the formation of enantiomerically enriched or pure indazoles such as aminoalkyl indazoles.
本文描述了制备
吲唑的方法。该方法涉及将芳香醛与氮源反应以形成亚硝基芳香醛。然后将亚硝基芳香醛与还原剂反应以形成
吲唑,最终可以用于形成所需的
吲唑,其最好是具有药理活性的产物。本发明的过程进一步允许形成对映富集或纯的
吲唑,如
氨基烷基
吲唑。