Title:
BULLEYACONITINE A CRYSTALLINE FORM C, PREPARATION METHOD THEREFOR AND APPLICATION THEREOF
Document Type and Number:
WIPO Patent Application WO/2020/186960
Kind Code:
A1
Abstract:
A bulleyaconitine A crystalline form C, and a preparation method therefor. An X-ray powder diffraction spectrum of the crystalline obtained by measurement using a Cu-Kα ray is as shown in fig. 1. The preparation method therefor comprises: using DMF as a solvent and obtaining by means of a gas-solid permeation method. The procedure of the preparation process is simple, and the obtained crystalline form is a solvate crystalline form, has high purity, and has good stability to light, humidity, and heat.
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Inventors:
WU QIONGFEN (CN)
LI BIAO (CN)
LI BIAO (CN)
Application Number:
PCT/CN2020/076154
Publication Date:
September 24, 2020
Filing Date:
February 21, 2020
Export Citation:
Assignee:
YUNNAN HAOPY PHARMACEUTICALS LTD (CN)
International Classes:
C07D221/22; A61P25/04; A61P29/00
Foreign References:
CN101555227A | 2009-10-14 | |||
CN101830849A | 2010-09-15 | |||
CN102924376A | 2013-02-13 | |||
CN104326981A | 2015-02-04 | |||
CN106008344A | 2016-10-12 | |||
CN109776416A | 2019-05-21 |
Other References:
YUAN, MEI ET AL.: "Non-official translation: Chemical Constituents of Aconitum Bulleyanum", JOURNAL OF CHINESE MEDICINAL MATERIALS, vol. 36, no. 6, 30 June 2013 (2013-06-30), DOI: 20200426152321X
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (CN)
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