Benzimidazole phosphono-amino acids
US5864040A · kind A · utility
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4Claims
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Assignee
Inventors
Key dates
| Filing date | Dec 23, 1996 |
| Grant date | Jan 26, 1999 |
| Priority date | — |
| Expiry date | Dec 23, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F9/4006
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
This invention provides a process for the preparation of a compound of formula I ##STR1## wherein R.sup.1 and R.sup.2 are each, independently, hydrogen, alkyl, alkoxy, trifluoromethyl, trifluoromethoxy, methanesulfonylamino, acetylamino, halo, cyano, nitro, or when taken together R.sup.1 and R.sup.2 represent a methylenedioxy or ethylenedioxy moiety; or a pharmaceutically acceptable salt thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.