Process method for preparing 2-amino-9H-pyridino[2,3-b]indole

The invention discloses a process method for preparing 2-amino-9H-pyridino[2, 3-b]indole, and the process method comprises the following steps: S1, preparing N,N-dibenzyl-6-halogenated pyridin-2-amine; S2, preparing 6-(1H-benzo[d] [1,2,3]triazol-1-yl)-N,N-dibenzylpyridin-2-amine; S3, preparing N,N-dibenzyl-9H-pyridino[2,3-b]indol-2-amine; and S4, preparing 2-amino-9H-pyridino[2,3-b]indole. The method is low in raw material price, safe to operate, high in reaction yield and high in product purity. 本发明公开了一种制备2-氨基-9H-吡啶[2,3-b]吲哚的工艺方法，包括以下步骤：S1：制备N,N-二苄基-6-卤代吡啶-2-胺；S2：制备6-(1H-苯并[d][1,2,3]三氮唑-1-基)-N,N-二苄基吡啶-2-胺；S3：制备N,N-二苄基-9H-吡啶[2,3-b]吲哚-2-胺；S4：制备2-氨基-9H-吡啶[2,3-b]吲哚。其原料价格低，操作安全，反应收率高，产品纯度高。