Process for preparing enantiomerically enriched oxamides
US9481686B2 · kind B2 · utility
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1References
16Claims
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Key dates
| Filing date | Jun 28, 2013 |
| Grant date | Nov 1, 2016 |
| Priority date | — |
| Expiry date | Jun 28, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P27/06
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to a chiral oxamide of formula (I) useful as an intermediate in the preparation of dorzolamide, and to the preparation thereof. The invention also relates to the preparation of dorzolamide, to the hydrochloride salt thereof, and to the active ingredient contained in a drug useful in the treatment of glaucoma, by means of the intermediate of formula (I).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.