Mintz, Levin, Cohn, Ferris, Glovsky and Popeo, P.C.
Ledipasvir crystal form and preparation method thereof
The present invention relates to a novel Ledipasvir (LDV) crystal form and a preparation method thereof. Specifically, disclosed is an LDV solvate. The solvate is a solvate formed by LDV and a solvent A and/or a solvent B, wherein the solvent A is acetonitrile or acetone; and the solvent B is methyl tertiary butyl ether (MTBE). Also disclosed are a preparation method and an application of the solvate. The solvate has a high purity, a good crystallization property, and better optical stability. The preparation method is simple and the process is stable. The solvate can significantly improve quality control and industrial applications of LDV-containing drugs.
SHANGHAI FOREFRONT PHARMACEUTICAL CO., LTD.
A C C A
A61P C07D C07B A61K
inventional inventional additional inventional
Yanyan Gang Zhewen Wei Yi Chengjun Shaojun
Zhu Fu Wei Li Ren Huang Fu