Benzimidazole derivatives, process for the preparation thereof and pharmaceutical composition containing the same
US4430343A · kind A · utility
22Cited by
3References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 22, 1982 |
| Grant date | Feb 7, 1984 |
| Priority date | — |
| Expiry date | Oct 22, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/55
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Novel benzimidazole derivatives of the formula: ##STR1## wherein R.sup.1 is an alkyl group having 1 to 3 carbon atoms, allyl group, propargyl group, or phenyl group; R.sup.2 is hydrogen atom or an alkyl group having 1 to 3 carbon atoms; and n is 2 or 3, or pharmaceutically acceptable acid addition salts thereof, which have excellent antihistaminic activities and are useful as antiallergics for various allergic diseases, and a process for the preparation thereof, and an antihistaminic composition containing the compound as an active ingredient.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.