Acrosin structure-based design, synthesis and biological activities of 7-azaindol derivatives as new acrosin inhibitors
作者:Jun Hang Jiang、Xue Fei Liu、Can Hui Zhen、You Jun Zhou、Ju Zhu、Jia Guo Lv、Chun Quan Sheng
DOI:10.1016/j.cclet.2010.09.033
日期:2011.3
A series of 7-azaindol derivatives were designed based on the homologous 3D model of human acrosin. These compounds were synthesized and evaluated for their human acrosin inhibitory activities in vitro. Compounds 7a, 7i, 7j, 7k and 7n showed highly inhibitory activity against human acrosin. The three-dimensional structure activity relationship was investigated through a CoMFA model, which provided valuable information to further study of potential human acrosin inhibitors. (C) 2010 Published by Elsevier B.V. on behalf of Chinese Chemical Society.
AN IMPROVED PROCESS FOR THE PREPARATION OF 7-AZAINDOLYL-3-CARBOXYLIC ACID
申请人:Dompé S.P.A.
公开号:EP1149098A1
公开(公告)日:2001-10-31
[EN] AN IMPROVED PROCESS FOR THE PREPARATION OF 7-AZAINDOLYL-3-CARBOXYLIC ACID<br/>[FR] PROCEDE AMELIORE DE PREPARATION D'ACIDE 7-AZAINDOLYL-3-CARBOXYLIQUE
申请人:DOMPE SPA
公开号:WO2000029411A1
公开(公告)日:2000-05-25
A process for the preparation of 7-azaindolyl-3-carboxylic acid is described starting from succinonitrile (VIII) which is condensed with ethyl formate and the so formed salt of 2-hydroxymethylenebutyrronitrile (VII) is reacted with tert.butylamine to give N-tert.butylaminomethylene-succinonitrile (VI) which is reacted in a warm ambience in the presence of a base to give 1-tert.butyl-2-amino-4-cyanopyrrole (V) which is reacted with a malondialdehyde acetal to give 1-tert.butyl-3-cyano-7-azaindole (IV) which in a suitable solvent is heated under reflux with a Lewis acid and the corresponding dichloroderivative (III), treated with a suitable proton donor, gives 3-cyano-7-azaindole (II) which is hydrolyzed at the temperature of 70 °C at pH 2.5 to provide 7-azaindolyl-3-carboxylic acid (I).
A Practical Synthesis of 7-Azaindolylcarboxy-<i>e</i><i>ndo</i>-tropanamide (DF 1012)
An optimised cost-effective synthesis of the new antitussive drug, DF1012, is herewith reported. The new synthetic route to the key intermediate DF1005 is based on the unusual deprotection step of the 1-tert-butyl-3-cyano-7-azaindole intermediate, which can also be regarded as a convenient way for the industrial production of the expensive 7-azaindole 1. The second key intermediate, endo-tropanamine