Title:
ACETYLSALICYLIC ACID DERIVATIVE CRYSTAL AND PREPARATION METHOD AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2016/155468
Kind Code:
A1
Abstract:
Disclosed are an acetylsalicylic acid derivative, i.e. a 2-(diethylamino)ethyl 2-acetoxy-benzoate hydrochloride crystal, and a preparation method and use thereof. The X-ray powder diffraction (XRPD) pattern of the crystal has characteristic peaks at the following 2θ angle: 11.0°±0.2°, 20.6°±0.2°, 25.1°±0.2°, 8.2°±0.2°, 16.5°±0.2°, 13.4°±0.2°, 25.4°±0.2°.
Inventors:
ZHANG JING (CN)
Application Number:
PCT/CN2016/075753
Publication Date:
October 06, 2016
Filing Date:
March 07, 2016
Export Citation:
Assignee:
ZHEJIANG YUEJIA PHARMACEUTICALS CO LTD (CN)
International Classes:
C07C219/14; A61K31/621; A61P3/10; A61P9/00; A61P19/02; A61P29/00; C07C213/06
Domestic Patent References:
| WO2014139161A1 | 2014-09-18 |
Foreign References:
| US3365483A | 1968-01-23 | |||
| CN104276962A | 2015-01-14 |
Other References:
See also references of EP 3279182A4
Attorney, Agent or Firm:
SHANGHAI PATENT & TRADEMARK LAW OFFICE, LLC (CN)
上海专利商标事务所有限公司 (CN)
上海专利商标事务所有限公司 (CN)
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