CA2485433A1 - Preparation of non-crystalline and crystalline dihydrate forms of azithromycin - Google Patents
Preparation of non-crystalline and crystalline dihydrate forms of azithromycin Download PDFInfo
- Publication number
- CA2485433A1 CA2485433A1 CA002485433A CA2485433A CA2485433A1 CA 2485433 A1 CA2485433 A1 CA 2485433A1 CA 002485433 A CA002485433 A CA 002485433A CA 2485433 A CA2485433 A CA 2485433A CA 2485433 A1 CA2485433 A1 CA 2485433A1
- Authority
- CA
- Canada
- Prior art keywords
- crystalline
- preparation
- azithromycin
- dihydrate forms
- forms
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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- Saccharide Compounds (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
The present invention describes new procedures for the preparation of the macrolide azithromycin in its non-crystalline and crystalline dihydrate forms, which are characterized and clearly differentiated by means of the following methods and techniques:
1. IR Spectroscopy.
2. Differential Scan Calorimetry (DSC).
3. X-Ray Diffraction.
4. Hygroscopicity.
5. Crystallinity test (Light Polarized Microscopy)
1. IR Spectroscopy.
2. Differential Scan Calorimetry (DSC).
3. X-Ray Diffraction.
4. Hygroscopicity.
5. Crystallinity test (Light Polarized Microscopy)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES009902620A ES2177373B1 (en) | 1999-11-26 | 1999-11-26 | PREPARATION OF AZITHROMYCIN IN ITS NON-CRYSTALLINE FORM |
ES9902620 | 1999-11-26 | ||
CA002326930A CA2326930C (en) | 1999-11-26 | 2000-11-24 | Preparation of non-crystalline and crystalline dihydrate forms of azithromycin |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002326930A Division CA2326930C (en) | 1999-11-26 | 2000-11-24 | Preparation of non-crystalline and crystalline dihydrate forms of azithromycin |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2485433A1 true CA2485433A1 (en) | 2001-05-26 |
CA2485433C CA2485433C (en) | 2008-01-29 |
Family
ID=34081389
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002485433A Expired - Fee Related CA2485433C (en) | 1999-11-26 | 2000-11-24 | Preparation of non-crystalline and crystalline dihydrate forms of azithromycin |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA2485433C (en) |
-
2000
- 2000-11-24 CA CA002485433A patent/CA2485433C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CA2485433C (en) | 2008-01-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |