Process for the preparation of [1,4,5]-oxadiazepine derivatives
US7598376B2 · kind B2 · utility
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14Claims
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Key dates
| Filing date | Dec 17, 2002 |
| Grant date | Oct 6, 2009 |
| Priority date | — |
| Expiry date | May 16, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D273/06
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for the preparation of [1,4,5]-oxadiazepine derivatives by reaction of N,N′-diacyl-hydrazines with 2,2′-disubstituted diethyl ethers to form 4,5-diacyl-[1,4,5]-oxadiazepines and reaction of the latter compounds with a hydrohalic acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.