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Patent Searching and Data


Title:
CRYSTALS OF GLYCYRRHIZIC ACID DERIVATIVES, CRYSTALLINE COMPOSITIONS, PHARMACEUTICAL COMPOSITIONS AND USES THEREOF
Document Type and Number:
WIPO Patent Application WO/2019/196920
Kind Code:
A1
Abstract:
The present application falls within the field of medical technology, and relates to crystals of glycyrrhizic acid derivatives, crystalline compositions, pharmaceutical compositions and uses thereof, in particular relates to type A crystal, type B crystal, type C crystal, type D crystal and type E crystal of magnesium isoglycyrrhizinate, and preparation methods for the crystals, crystalline compositions and pharmaceutical compositions comprising the crystals and the uses thereof. The crystals prepared by the present application overcome the shortcomings of the compound of formula I prepared according to the prior art, such as solid caking, difficulty in filtration and drying, and poor clarity, are suitable for industrial production and improve product safety.

Inventors:
ZHOU ZHOU (CN)
XU WENWEI (CN)
ZHANG AIMING (CN)
ZHANG XIQUAN (CN)
Application Number:
PCT/CN2019/082400
Publication Date:
October 17, 2019
Filing Date:
April 12, 2019
Export Citation:
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Assignee:
CHIA TAI TIANQING PHARMACEUTICAL GROUP CO LTD (CN)
International Classes:
C07H15/256
Foreign References:
CN1169826C2004-10-06
CN104861031A2015-08-26
CN1381462A2002-11-27
Attorney, Agent or Firm:
INSIGHT INTELLECTUAL PROPERTY LIMITED (CN)
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