1-substituted-2-(piperazinyl or homopiperazinyl)-benzimidazole c

Details 1-substituted-2-(piperazinyl or homopiperazinyl)-benzimidazole c 1-substituted-2-(piperazinyl or homopiperazinyl)-benzimidazole c

1984-03-28

1986-07-29

Lesmes, George F.

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Heterocyclic carbon compounds containing a hetero ring...

544370, 2602456, 514253, C07D40304, C07D24102, A61K 3155, A61K 31495

Patent

active

046031308

ABSTRACT:
Novel benzimidazole derivatives of the formula: ##STR1## wherein R.sup.1 is a lower alkyl group, a lower alkenyl group or a lower alkynyl group, R.sup.2 is hydrogen atom, a lower alkyl group or a lower hydroxyalkyl group, and n is 2 or 3, or a pharmaceutically acceptable acid addition salt thereof, which have potent antihistaminic activity with less toxicity and hence are useful as an antihistaminics, and a process for the preparation of the compounds, and a pharmaceutical composition useful as antihistaminics containing the compound as an essential active ingredient.

REFERENCES:
patent: 3423413 (1969-01-01), Priewe et al.
patent: 3658822 (1972-04-01), Fauran et al.
patent: 3794651 (1974-02-01), Helsley et al.
patent: 4011322 (1977-03-01), Rahtz et al.
patent: 4029789 (1977-06-01), Fauran et al.
patent: 4093726 (1978-06-01), Winn et al.
patent: 4179505 (1979-12-01), Raeymakers et al.
patent: 4430343 (1984-02-01), Iemura et al.
patent: 4459296 (1984-07-01), Ancher et al.
Pharmaprojects, Therapeutic Categories, vol. 4, May 1983, R8A ar14.
Pharmaprojects, Therapeutic Categories Update, Apr. 1983, au 75 R8A.

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