Hydrates of erythromycin salts, preparation and use thereof
US8470787B2 · kind B2 · utility
1Cited by
2References
13Claims
0Family size
Inventor
Key dates
| Filing date | Jul 10, 2009 |
| Grant date | Jun 25, 2013 |
| Priority date | — |
| Expiry date | Dec 4, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A50/30
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A macrolide derivative, i.e., a hydrate of erythromycin salts, has a molecular formula of C37H67NO13.A.nH2O, n=1.0-11.0, in which A is an organic acid or an organic acids, selected from lactobionic acid, thiocyanic acid, maleic acid, fumaric acid, thiocyanic acid, acetic acid, methanesulfonic acid, benzenesulfonic acid, nicotinic acid, lactic acid, citric acid, tartaric acid, aspartic acid, glutamic acid and phosphoric acid. The hydrate has better storage stability and is suitable for the manufacture of a medicament.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.