Inhibitors of gastric acid secretion: antisecretory 2-pyridylurea derivatives
作者:William A. Bolhofer、Albert A. Deana、Charles N. Habecker、Jacob M. Hoffman、Norman P. Gould、Adolph M. Pietruszkiewicz、John D. Prugh、Mary Lou Torchiana、Edward J. Cragoe、Ralph Hirschmann
DOI:10.1021/jm00358a015
日期:1983.4
A series of aminoalkyl-substituted pyridylureas has been prepared and evaluated as inhibitors of gastricacidsecretion. N,N-Dimethyl-N'-[2-(diisopropylamino)ethyl]-N'-(4,6-dimethyl-2-pyridyl)urea (8g) was the most potent example of the class. Comparison of this compound with cimetidine showed it to be equipotent in dogs stimulated with gastrin tetrapeptide but approximately half as potent in dogs
Process for the preparation of heterocyclic alkylamide derivatives
申请人:G. D. Searle & Co.
公开号:US05432284A1
公开(公告)日:1995-07-11
The present invention relates to a novel process for the preparation of heterocyclic alkylamide derivatives having the following formula: ##STR1## and the pharmaceutically acceptable acid addition salt thereof wherein X represents halo, alkyl having 1 to 6 carbon atoms, hydrido, trifluoromethyl, phenyl, or lower alkoxy having 1 to 6 carbon atoms; Y represents the group --CN or --CONH.sub.2 ; R.sub.2 represents alkyl having 1 to 6 carbon atoms; R.sub.3 represents acetyl, benzoyl, phenacetyl or trifluoroacetyl; m is the integer 1 or 2 and n is an integer from 1 to 3 inclusive; which comprises alkylating an aminoalkanol using a benzaldehyde/aminoalkanol/ketone mixture in the presence of a platinum catalyst to give an alkyl substituted phenylmethylaminoalkanol; halogenating the alkanol using a halogenating agent to give a haloalkyl alkylbenzenemethanamine salt; treating the salt with substituted phenyl piperidinealkanenitrile or substituted phenyl pyrrolidinealkanenitrile in the presence of base and dimethyl sulfoxide to give a substituted phenyl substituted aminoalkyl piperidinealkanenitrile or substituted aminoalkyl pyrrolidinealkanenitrile; hydration of the nitrile to give the corresponding amide; and N-debenzylation of the amide followed by acetylation to give the compounds of formula I wherein Y is --CONH.sub.2.