[EN] ESKETAMINE FORMULATIONS AND METHODS FOR PREPARATION AND STORAGE<br/>[FR] FORMULATIONS D'ESKÉTAMINE ET LEURS PROCÉDÉS DE PRÉPARATION ET DE STOCKAGE
申请人:JANSSEN PHARMACEUTICA NV
公开号:WO2021116498A1
公开(公告)日:2021-06-17
The disclosure is directed to pharmaceutical compositions comprising esketamine or a pharmaceutically acceptable salt thereof and an oxidative degradant. In certain aspects, the oxidative degradant is 6-(2-chlorophenyl)-6-oxohexanoic acid or a pharmaceutically acceptable salt thereof. Methods for limiting the formation of oxidative degradants in a pharmaceutical composition comprising esketamine or a pharmaceutically acceptable salt thereof are also disclosed.
Optimized Process and Quality Evaluation for Ketamine Hydrochloride
hydrochloride. We discovered that using N-bromosuccinimide (NBS) instead of HBr/H2O2 improved the conversion rate of the brominationreaction from 88% to 99% and led to a milder and steadier reaction. Besides, CH3NH2/K2CO3 was used in the methylamination reaction to shorten the reaction time from 80 to 15 h, with an 80% yield of 1-((2-chlorophenyl) (methylimino) methyl) cyclopentanol hydrochloride (6) and
在这项研究中,我们开发了一种增强且高效的公斤级盐酸氯胺酮合成方法。我们发现使用N-溴代琥珀酰亚胺(NBS)代替HBr/H 2 O 2将溴化反应的转化率从88%提高到99%,并且反应更加温和稳定。此外,在甲胺化反应中使用CH 3 NH 2 /K 2 CO 3 将反应时间从80 h缩短至15 h,1-((2-氯苯基)(甲基亚氨基)甲基)环戊醇盐酸盐的收率达到80 % ( 6)和 99.5% 的纯度。此外,通过额外的碱水洗涤,盐酸氯胺酮的灼烧残留物从3.00%降低至0.10%以下。还对盐酸氯胺酮的几种相关杂质进行了评估,并考察了盐酸氯胺酮溶液的澄清度和颜色。综上所述,优化后的工艺具有工业规模化,能够控制盐酸氯胺酮的最终质量。