Intermediate of Ertapenem, a composition comprising the same and preparation methods thereof
US9388184B2 · kind B2 · utility
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3References
22Claims
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Key dates
| Filing date | Apr 30, 2010 |
| Grant date | Jul 12, 2016 |
| Priority date | — |
| Expiry date | Jul 29, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/55
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Intermediates of Ertapenem of formula 2a wherein Np represents (I) or (II), and P1 and P2 represent carboxyl protecting groups, and their preparation methods. Compound 2a prepared by the present methods in solid form is amorphous. The present invention also relates to a composition comprising at least 95% of the intermediate of Ertapenem of formula 2a.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.