Process for preparing benzazepine intermediates for the synthesis of D1 antagonists
US5461148A · kind A · utility
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3References
13Claims
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Key dates
| Filing date | Sep 27, 1993 |
| Grant date | Oct 24, 1995 |
| Priority date | — |
| Expiry date | Sep 27, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C217/60
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Disclosed are a process and intermediates of the formulae ##STR1## wherein R is --CH.sub.2 OH or --OH and R.sup.3 is H or C.sub.1 -C.sub.6 alkyl; useful for preparing benzazepines of the formula ##STR2## having activity as selective D1 antangonists.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.