Nonpeptidic, Noncovalent Inhibitors of the Cysteine Protease Cathepsin S
摘要:
The first nonpeptidic, noncovalent inhibitors of the cysteine protease cathepsin S (CatS) are described. Electronic database searching using the program DOCK generated a screening set of potential CatS inhibitors from which two lead structures were identified as promising starting points for a drug discovery effort. Lead optimization afforded potent (IC50 < 50 nM) and selective inhibitors of CatS demonstrating cellular activity and reversibility of enzyme inhibition.
Nonpeptidic, Noncovalent Inhibitors of the Cysteine Protease Cathepsin S
摘要:
The first nonpeptidic, noncovalent inhibitors of the cysteine protease cathepsin S (CatS) are described. Electronic database searching using the program DOCK generated a screening set of potential CatS inhibitors from which two lead structures were identified as promising starting points for a drug discovery effort. Lead optimization afforded potent (IC50 < 50 nM) and selective inhibitors of CatS demonstrating cellular activity and reversibility of enzyme inhibition.
A variety of substituted tetrahydropyrido[4,3-d]pyrimidines was prepared and found to possess gastric antilesion against ethanol-induced lesions in rats. The more potent compounds possessed similar activity against aspirin-induced gastric lesions. A selective group of compounds was determined to be inactive as gastric antisecretory agents in rabbit isolated parietal cells. The antilesion properties of these tetrahydropyrido[4,3-d]pyrimidines make them a potential alternative to prostaglandin therapy for gastric antilesion therapy and may have clinical utility in peptic ulcer disease.
Synthesis, in vitro [3H]prazosin displacement, and in vivo activity of 3-aryl-4,5,6,7-tetrahydropyrazolo[4,3-c]pyridines, a new class of antihypertensive agents
A series of new 3-aryl-4,5,6,7-tetrahydropyrazolo[4,3-c]pyridines was synthesized and screened for in vitro [3H]prazosin displacement activity. The results correlated well with their antihypertensive activity in spontaneous hypertensive rats. 1-Benzyl-3-(4-fluorophenyl)-4,5,6,7-tetrahydropyrazolo[4,3-c]pyrid ine (50, L 16052) was selected for further pharmacological evaluations of its potency when administered orally to conscious renal hypertensive dogs.
Nonpeptidic, Noncovalent Inhibitors of the Cysteine Protease Cathepsin S
作者:Robin L. Thurmond、Mary Pat Beavers、Hui Cai、Steven P. Meduna、Darin J. Gustin、Siquan Sun、Harold J. Almond、Lars Karlsson、James P. Edwards
DOI:10.1021/jm0496133
日期:2004.9.1
The first nonpeptidic, noncovalent inhibitors of the cysteine protease cathepsin S (CatS) are described. Electronic database searching using the program DOCK generated a screening set of potential CatS inhibitors from which two lead structures were identified as promising starting points for a drug discovery effort. Lead optimization afforded potent (IC50 < 50 nM) and selective inhibitors of CatS demonstrating cellular activity and reversibility of enzyme inhibition.