[EN] INTERMEDIATE COMPOUNDS AND PROCESSES FOR THE PREPARATION OF QUINOLINE DERIVATIVES SUCH AS LAQUINIMOD SODIUM [FR] COMPOSÉS INTERMÉDIAIRES ET PROCÉDÉS DE PRÉPARATION DE DÉRIVÉS DE QUINOLÉINE TELS QUE LAQUINIMOD SODIUM
Laquinimod, 5‐chloro‐1,2‐dihydro‐N‐ethyl‐4‐hydroxy‐1‐methyl‐2‐oxo‐N‐ phenyl‐3‐quinoline carboxamide, is an oral drug in clinical trials for the treatment of multiple sclerosis. An efficient synthetic method for laquinimod from 2‐amino‐6‐chlorobenzoic acid via four steps was established. The overall yield of laquinimod is up to 82% as compared with 70% reported in literature. It has also been demonstrated
Intermediate compounds and processes for the preparation of quinoline derivatives such as Laquinimod sodium
申请人:Marom Ehud
公开号:US08865742B2
公开(公告)日:2014-10-21
The present invention relates to processes for the preparation of quinoline-3-carboxamide derivatives, such as sodium 5-chloro-3-(ethylphenylcarbamoyl)-1-methyl-2-oxo-1,2-dihydroquinolin-4-olate (Laquinimod sodium). The present invention further relates to intermediates formed in such processes.
INTERMEDIATE COMPOUNDS AND PROCESSES FOR THE PREPARATION OF QUINOLINE DERIVATIVES SUCH AS LAQUINIMOD SODIUM
申请人:MAPI PHARMA LTD.
公开号:US20150051419A1
公开(公告)日:2015-02-19
The present invention relates to processes for the preparation of quinoline-3-carboxamide derivatives, such as sodium 5-chloro-3-(ethylphenylcarbamoyl)-1-methyl-2-oxo-1,2-dihydroquinolin-4-olate (Laquinimod sodium). The present invention further relates to intermediates formed in such processes.
Intermediate compounds and processes for the preparation of quinoline derivatives such as laquinimod sodium
申请人:MAPI PHARMA LTD.
公开号:US09102592B2
公开(公告)日:2015-08-11
The present invention relates to processes for the preparation of quinoline-3-carboxamide derivatives, such as sodium 5-chloro-3-(ethylphenylcarbamoyl)-1-methyl-2-oxo-1,2-dihydroquinolin-4-olate (Laquinimod sodium). The present invention further relates to intermediates formed in such processes.