Process for preparing 1,2-diamino compounds
US7122684B2 · kind B2 · utility
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11References
47Claims
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Assignee
Inventors
Key dates
| Filing date | Mar 13, 2003 |
| Grant date | Oct 17, 2006 |
| Priority date | — |
| Expiry date | Apr 11, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2601/16
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention provides a multi-step process for preparing 1,2-diamino compounds of formulawherein R1, R1′, R2, R2′, R3 and R4 have the meaning given in the specification and pharmaceutically acceptable addition salts thereof, from 1,2-epoxides of formulawherein R1, R1′, R2 and R2′ have the meaning given in the specification.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.