(3,4,7,8,9,10-hexahydro-6, 10 -6H-pyridazino [1,2-a] [1,2] diazepine-1-carboxylic-acid derivatives
US6433164B1 · kind B1 · utility
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3Claims
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Key dates
| Filing date | Jan 19, 2001 |
| Grant date | Aug 13, 2002 |
| Priority date | — |
| Expiry date | Jan 19, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07K5/06139
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
A compound of the formula wherein R is alkyl or aralkyl of up to 18 carbon atoms, the amine function being optionally protected are used to prepare compounds of the formula in which R retains its previous meaning and the amine is optionally protected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.