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Patent Searching and Data


Title:
METHOD FOR PREPARING CRYSTAL FORM OF AZACITIDINE
Document Type and Number:
WIPO Patent Application WO/2019/129260
Kind Code:
A1
Abstract:
The present invention relates to a method for preparing a crystal form of azacitidine. The present invention relates to a method for preparing a crystal form I of azacitidine. DMSO is used as a solvent, and a mixed alcohol solvent is used as an anti-solvent. The prepared crystal form is single, features good purity and no mixed crystals, has low solvent residues, and is suitable for industrial application and production.

Inventors:
LIN QING (CN)
HE LEI (CN)
YU JUN (CN)
Application Number:
CN2018/125314
Publication Date:
July 04, 2019
Filing Date:
December 29, 2018
Export Citation:
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Assignee:
JIANGSU HANSOH PHARMACEUTICAL GROUP CO LTD (CN)
International Classes:
C07H19/12
Domestic Patent References:
WO2004082619A22004-09-30
WO2004082822A22004-09-30
WO2009016617A22009-02-05
Foreign References:
CN102850418A2013-01-02
Attorney, Agent or Firm:
GE CHENG & CO.,LTD. (CN)
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