Practical Synthesis of a Vanilloid Receptor-1 Antagonist
作者:Oliver R. Thiel、Charles Bernard、Tony King、Mina Dilmeghani-Seran、Tracy Bostick、Robert D. Larsen、Margaret M. Faul
DOI:10.1021/jo8002216
日期:2008.5.1
Small molecule TRPV1 antagonists have been a recent focus in the search for pain treatment agents. We herein describe a practical and scalable synthesis of AMG 628 (1), a bis-substituted pyrimidine derivative that was identified as a highly efficacious agent, suitable for clinical development. Highlights of our approach include a practical route to a substituted benzothiazole, a scalable synthesis of an enantiopure piperazine fragment, and identification of conditions for selective coupling reactions on 2,6-dichloropyrimidine, to access the active pharmaceutical ingredient in high purity and overall yield.
3-Thio-5-(N-aryl-N′-arylguanyl)-1,2,4-dithiazoles as potential anti-convulsant and analgesic agents
作者:K Srivastava、SN Pandeya
DOI:10.1016/0223-5234(93)90010-c
日期:1993.1
The synthesis and biological activities of a number of substituted 3-thio-5-(N-aryl-N'-arylguanyl)-1,2,4-dithiazoles are reported. The aromatic substitutents m-CH3 3, p-CH3 4 and p-bromo 11 produced compounds with potent anti-convulsant properties in rats and compared favorably with the standard anti-convulsant drugs phenytoin and phenobarbitone-sodium in a number of test situations. In the analgesic test, most of the compounds exhibited analgesic activity with particular reference to p-CH3 4 substitution being most potent in the series.
Facile synthesis, molecular docking and toxicity studies of 4-Phenyl-3-phenylamino-4H-[1,2,4]thiadiazol-5-one analogs as GABAA receptor agonists
作者:Kirti Diwakar、Pankaj Kumar Sonar、Mudita Mishra、Avinash C. Tripathi、Shailendra K. Saraf
DOI:10.1007/s00044-016-1697-5
日期:2016.11
A series of 4-Phenyl-3-phenylamino-4H-[1,2,4]thiadiazol-5-one derivatives was synthesized by a simple method and their structures were established by physical and spectroscopic methods like infrared, mass and nuclear magnetic resonance spectroscopy. Elemental formulae of all the compounds were determined by elemental analysis and compared with the calculated value. Log P value and in vitro hydrolysis