Methods for preparing levorphanol and related compounds, and compositions thereof
申请人:AMPAC Fine Chemicals LLC
公开号:US10851063B2
公开(公告)日:2020-12-01
A method for producing substantially pure levorphanol and related compounds, when compared to the conventional process, is provided. In particular, a method for producing substantially pure levorphanol tartrate dihydrate is described. Also described are compositions comprising levorphanol and related compounds, particularly compositions comprising levorphanol tartrate dihydrate, levomethorphan, and norlevorphanol in which the levomethorphan and norlevorphanol are present in the composition in reduced levels.
与传统工艺相比,本发明提供了一种生产高纯度左旋吗啡醇及相关化合物的方法。特别是描述了一种生产酒石酸左旋吗啡醇二水合物的方法。还描述了包含左旋吗啡和相关化合物的组合物,特别是包含酒石酸左旋吗啡、左旋吗啡和去甲吗啡的组合物,其中左旋吗啡和去甲吗啡在组合物中的含量降低。