[EN] PROCESS FOR THE PREPARATION OF EFINACONAZOLE<br/>[FR] PROCÉDÉ DE PRÉPARATION D'ÉFINACONAZOLE
申请人:GLENMARK PHARMACEUTICALS LTD
公开号:WO2016193917A1
公开(公告)日:2016-12-08
The present invention relates to a process for the preparation of Efinaconazole and salts thereof.
本发明涉及一种制备依非酮唑及其盐的方法。
AZOLYLAMINE DERIVATIVE
申请人:KAKEN PHARMACEUTICAL CO., LTD.
公开号:EP0698606A1
公开(公告)日:1996-02-28
An antifungal agent containing as the active ingredient a compound represented by general formula (I) or an acid-addition salt thereof, in particular, one having an absolute configuration of (R, R) at the asymmetric carbon atoms or an acid-addition salt thereof.
Production and purification methods for efinaconazole
申请人:KAKEN PHARMACEUTICAL CO., LTD.
公开号:US10829475B2
公开(公告)日:2020-11-10
The present invention provides efinaconazole producing and purifying methods adapted to industrial scale that provide high-purity efinaconazole in high yield by simple operations using specific impurities as indices. The efinaconazole producing method comprises:
step A of forming a toluene solution comprising compound (II), compound (III), an inorganic base, and toluene in a volume (L) which is 2 to 5 times the mass (kg) of compound (II);
step B of subjecting the toluene solution to reaction under heating;
step C of washing the reaction mixture from step B to obtain a toluene solution of crude efinaconazole in which the residual amount of 4-MP is not more than 5 wt % of efinaconazole.
本发明提供了适应工业规模的依芬康唑生产和提纯方法,该方法以特定杂质为指标,通过简单的操作即可高产提供高纯度的依芬康唑。生产依芬康唑的方法包括
步骤 A 形成甲苯溶液,该甲苯溶液由化合物 (II)、化合物 (III)、无机碱和甲苯组成,体积 (L) 是化合物 (II) 质量 (kg) 的 2 至 5 倍;
步骤 B 将甲苯溶液加热反应
步骤 C:洗涤步骤 B 中的反应混合物,以获得粗制依芬康唑的甲苯溶液,其中 4-MP 的残留量不超过依芬康唑重量的 5%。
PROCESS FOR THE PREPARATION OF EFINACONAZOLE
申请人:Glenmark Pharmaceuticals Limited
公开号:US20180162833A1
公开(公告)日:2018-06-14
The present invention relates to a process for the preparation of Efinaconazole and salts thereof.
PRODUCTION AND PURIFICATION METHODS FOR EFINACONAZOLE
申请人:KAKEN PHARMACEUTICAL CO., LTD.
公开号:US20190292166A1
公开(公告)日:2019-09-26
The present invention provides efinaconazole producing and purifying methods adapted to industrial scale that provide high-purity efinaconazole in high yield by simple operations using specific impurities as indices. The efinaconazole producing method comprises:
step A of forming a toluene solution comprising compound (II), compound (III), an inorganic base, and toluene in a volume (L) which is 2 to 5 times the mass (kg) of compound (II); step B of subjecting the toluene solution to reaction under heating;
step C of washing the reaction mixture from step B to obtain a toluene solution of crude efinaconazole in which the residual amount of 4-MP is not more than 5 wt % of efinaconazole.