Biphenyl-tetrazole intermediate compounds
US5420292A · kind A · utility
1Cited by
2References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 31, 1994 |
| Grant date | May 30, 1995 |
| Priority date | — |
| Expiry date | Jan 31, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D403/10
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention provides a novel chemical process for the manufacture of quinoline, pyridine and imidazole derivatives of the formula IV wherein Q, Y.sup.1 and Y.sup.2 have the various meanings defined herein, and their non-toxic salts, which are angiotensin II inhibitors. The process involves the removal of an electron-deficient phenyl group or a pyridyl or pyrimidyl group from a compound of the formula VI as defined herein. Certain of the intermediates are novel and are provided as a further feature of the invention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.