title: UH-AH 37, an ileal-selective muscarinic antagonist that does not discriminate between M2 and M3 binding sites.
abstract: The novel antimuscarinic compound UH-AH 37 (6-chloro-5,10-dihydro-5-[(1-methyl-4-piperidyl)acetyl]-11H- dibenzo-[b, e][1,4]diazepine-11-one hydrochloride) showed a 14-fold higher affinity for ileal than for atrial muscarinic receptors. In receptor binding studies UH-AH 37 showed no marked selectivity for either atrial, glandular or ileal muscarinic binding sites. Moreover, it did not reveal binding heterogeneity in membranes from ileal smooth muscle. These result indicate that UH-AH 37 possesses a unique and novel selectivity profile.
authors.affiliation: Department of Pharmacology, Dr. Karl Thomae GmbH, Biberach 1, F.R.G.
authors.forename: H N
authors.initials: HN
authors.lastname: Doods
authors.forename: N
authors.initials: N
authors.lastname: Mayer
mesh_terms: D000818:Animals; D001570:Benzodiazepinones / Q000494:pharmacology*; D003984:Dibenzazepines; D006321:Heart / Q000187:drug effects; D066298:In Vitro Techniques; D007413:Intestinal Mucosa / Q000378:metabolism; D007422:Intestines / Q000187:drug effects; D008297:Male; D009130:Muscle, Smooth / Q000187:drug effects / Q000378:metabolism; D009206:Myocardium / Q000378:metabolism; D010276:Parasympatholytics / Q000494:pharmacology*; D051381:Rats; D011919:Rats, Inbred Strains; D011976:Receptors, Muscarinic / Q000187:drug effects*
chemical_list: D001570:Benzodiazepinones; D003984:Dibenzazepines; D010276:Parasympatholytics; D011976:Receptors, Muscarinic; C059904:UH-AH 37