title: Synthesis, enantioseparation and pharmacological activity of 4-aryl-7,7-dimethyl-5-oxo-1,2,3,4,5,6,7,8-octahydroquinazoline-2-thiones.
abstract: 4-Aryl-7,7-dimethyl-5-oxo-1,2,3,4,5,6,7,8-octahydroquinazoline-2-thione derivatives (1-8) have been prepared by modified Biginelli reaction from 5,5-dimethyl-1,3-cyclohexanedione, the aromatic aldehydes and thiourea. The structures of the compounds were confirmed by spectroscopic and elemental analysis. Racemic compounds were resolved into their enantiomers by HPLC using an amylose tris-(3,5-dimethylphenylcarbamate) chiral stationary phase in the normal phase mode. The calcium antagonist activities of the compounds were determined by the tests performed on isolated rat ileum and lamb carotid artery. Compounds 2, 3, 4 and 6 were the most active compounds on isolated rat ileum. Compounds 2 and 3 were significantly active on lamb carotid artery.
authors.affiliation: Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Hacettepe University, Ankara, Turkey. mineyarim@hotmail.com
authors.forename: Mine
authors.initials: M
authors.lastname: Yarim
authors.forename: Selma
authors.initials: S
authors.lastname: Saraç
authors.forename: Mevlüt
authors.initials: M
authors.lastname: Ertan
authors.forename: F Sultan
authors.initials: FS
authors.lastname: Kiliç
authors.forename: Kevser
authors.initials: K
authors.lastname: Erol
mesh_terms: D000818:Animals; D002121:Calcium Channel Blockers / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology*; D002339:Carotid Arteries / Q000187:drug effects; D002851:Chromatography, High Pressure Liquid; D005260:Female; D066298:In Vitro Techniques; D007202:Indicators and Reagents; D009682:Magnetic Resonance Spectroscopy; D008297:Male; D013058:Mass Spectrometry; D008970:Molecular Weight; D009119:Muscle Contraction / Q000187:drug effects; D009131:Muscle, Smooth, Vascular / Q000187:drug effects; D011189:Potassium Chloride / Q000494:pharmacology; D011799:Quinazolines / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology*; D051381:Rats; D012756:Sheep; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet; D013237:Stereoisomerism
chemical_list: D002121:Calcium Channel Blockers; D007202:Indicators and Reagents; D011799:Quinazolines; D011189:Potassium Chloride