Process for preparing benzazepine compounds or salts thereof
US8501730B2 · kind B2 · utility
1Cited by
5References
5Claims
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Key dates
| Filing date | May 17, 2012 |
| Grant date | Aug 6, 2013 |
| Priority date | — |
| Expiry date | May 17, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C231/12
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
This invention provides a process for preparing benzazepine compounds of the formula (1):wherein X1 is a halogen atom, R1 and R2 are a lower alkyl group, or salts thereof as well as intermediate benzoic acid compounds in high yield and high purity on industrial scale, which are useful as an intermediate for preparing a pharmaceutically active 2,3,4,5-tetrahydro-1H-1-benzazepine compound having vasopressin antagonistic activity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.