[EN] BENZENESULFONAMIDE COMPOUNDS AND THEIR USE AS THERAPEUTIC AGENTS<br/>[FR] COMPOSÉS BENZÈNESULFONAMIDES ET LEUR UTILISATION EN TANT QU'AGENTS THÉRAPEUTIQUES
申请人:XENON PHARMACEUTICALS INC
公开号:WO2017201468A1
公开(公告)日:2017-11-23
This invention is directed to benzenesulfonamide compounds, as stereoisomers, enantiomers, tautomers thereof or mixtures thereof; or pharmaceutically acceptable salts, solvates or prodrugs thereof, for the treatment of diseases or conditions associated with voltage-gated sodium channels, such as epilepsy.
Benzenesulfonamide compounds and their use as therapeutic agents
申请人:Xenon Pharmaceuticals Inc.
公开号:US10246453B2
公开(公告)日:2019-04-02
This invention is directed to benzenesulfonamide compounds, as stereoisomers, enantiomers, tautomers thereof or mixtures thereof; or pharmaceutically acceptable salts, solvates or prodrugs thereof, for the treatment of diseases or conditions associated with voltage-gated sodium channels, such as epilepsy.
Method for preparing efficiently synthetic sitafloxacin intermediate (7S)-5-azaspiro[2.4]heptane-7-yl tert-butyl carbamate
申请人:Chen-Stone (Guangzhou) Co., Ltd.
公开号:US10358417B2
公开(公告)日:2019-07-23
The present invention discloses a preparation method for efficient synthesis of sitafloxacin intermediate (7S)-5-azaspiro[2.4]heptane-7-yl-tert-butyl carbamate, comprising the following steps: reacting
to obtain
reacting
to obtain
reacting
to obtain
and reacting
to obtain
In the present invention, a single compound with a relatively high ee value can be obtained, the unnecessary waste of materials is avoided, the yield is significantly improved, the operation is simple, the industrial scale-up is easy, and the production cost is reduced.