860742-51-4Relevant articles and documents
New synthesis of N-(4-chloro-3-cyano-7-ethoxyquinolin- 6-yl)acetamide
Mao, Yongjun,He, Yang,Zhu, Fuqiang,Chen, Weiming,Shen, Jingshan,Li, Jianfeng
, p. 1203 - 1209 (2014/05/20)
New synthetic route of N-(4-chloro-3-cyano-7-ethoxyquinolin-6-yl)- acetamide (1) is described on a hectogram scale. The key steps include the intramolecular cyclization of 3-amino-2-(2-chlorobenzoyl)acrylonitrile 22 to give the 3-cyano-4-quinolone 7, which was chlorinated by POCl3 to give the final product 1 in 36.9% yield over 9 steps and 98.9% purity (HPLC). Purification methods of 7 and 1 were also given.