Antihistaminic 2-(amino ethylamino) pyridines

Details Antihistaminic 2-(amino ethylamino) pyridines Antihistaminic 2-(amino ethylamino) pyridines

1984-07-27

1986-05-20

Jiles, Henry R.

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Having -c-, wherein x is chalcogen, bonded directly to...

514352, 546281, 546309, 546310, 546312, A61K 31455, A61K 3144, C07D40112, C07D21380

Patent

active

045901996

ABSTRACT:
The present invention provides a compound of the formula (I): ##STR1## or a salt, ester or amide thereof; wherein R.sub.1 is --COOH, --CH.dbd.CH--COOH, --CH.sub.2 COOH, or (CH.sub.2).sub.2 COOH. R.sub.2 is alkoxy (1-4 carbons), alkyl (1-4 carbons), hydrogen, or halogen. R.sub.3 and R.sub.4 may be the same or different and can be hydrogen, or lower alkyl(1-4 carbons) or NR.sub.3 R.sub.4 is pyrrolidino.
Also disclosed are methods for the preparation of the above compounds and pharmaceutical formulations containing them.
The above compounds have antihistaminic activity.

REFERENCES:
patent: 2502151 (1946-08-01), Horclois
patent: 3415834 (1968-12-01), Hoffmann et al.
patent: 4501893 (1985-02-01), Findlay et al.
European Search Report of EP 84109056.6.

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