One-pot synthesis of alkyl 3-cyclopropylamino-2-[2,4-dibromo-3-(difluromethoxy) benzoyl]-2-propenoate as a useful intermediate for antibacterial quinolone medicaments
US6835848B1 · kind B1 · utility
1Cited by
1References
9Claims
0Family size
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Key dates
| Filing date | Jan 6, 2003 |
| Grant date | Dec 28, 2004 |
| Priority date | — |
| Expiry date | Jul 30, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2601/02
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to a new and industrially advantageous one-pot process for the preparation of alkyl 3-cyclopropyl amino-2-[2,4-dibromo-3-(difluoromethoxy) benzoyl]-2-propenoates of in which R represents methyl or ethyl, which are valuable intermediates for the production of highly active antibacterial quinolone medicaments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.