Synthesis of Novel Tricyclic Aryltriazole‐3‐Thione Compounds
摘要:
A new synthetic protocol has been developed to provide entry into a series of novel tricyclic aryltriazole-3-thiones analogs. The classical reaction conditions of subjecting an arylhydrazide with thiophosgene to form the thioisocyanate intermediate and ultimately the corresponding aryltriazole-3-thione framework were not successful. However, using a combination of carbon disulfide and 1,8-diazabicyclo[5.4.0]undec7-ene (DBU) to form the thioisocyanate intermediate was found to produce the novel tricyclic aryltriazole-3-thiones (5, 8a-c) in good yield.
[EN] 3,4-CYCLOAMIDRAZONES, PROCESS FOR PRODUCING THEM AND PHARMACEUTICALS CONTAINING THEM
申请人:——
公开号:WO1992019572A2
公开(公告)日:1992-11-12
[FR] L'invention concerne des 3,4-cycloamidrazones partiellement nouvelles, leur procédé de fabrication et leur utilisation dans des préparations pharmaceutiques. Les 3,4-cycloamidrazones concernées comprennent des lactame-arylhydrazones et des cycloimide-arylhydrazones. Leur fabrication s'effectue en faisant réagir des dérivés activés de lactame et de cycloimide avec des arylhydrazines ou avec des hydrochlorures d'arylhydrazines. Les 3,4-cycloamidrazones selon l'invention sont des inhibiteurs de la lipoxygénase d'une grande efficacité et peuvent être utilisées dans des médicaments destinés à combattre toutes formes d'inflammation, des affections allergiques, l'asthme, la bronchite et le psoriasis.
Lipoxygenase-Inhibitoren, 3. Mitt.: Synthese von Tetrahydrobenzazepinon-phenylhydrazonen
Die als Ausgangsprodukte benötigten Tetrahydro‐2H‐benz[b]azepin‐2‐one wurden durch Beckmann‐Umlagerung oder Schmidt‐Reaktion erhalten. Die Phenylhydrazone wurden über die Thione und Thiolactimether synthetisiert. Es wurde die Hemmung der Sojabohnen‐Lipoxygenase ermittelt.
Synthesis of Novel Tricyclic Aryltriazole‐3‐Thione Compounds
作者:Cuiman Cai、Janet S. Plummer、David Connor、Daniel D. Holsworth、Jeremy J. Edmunds
DOI:10.1081/scc-200048912
日期:2005.1.1
A new synthetic protocol has been developed to provide entry into a series of novel tricyclic aryltriazole-3-thiones analogs. The classical reaction conditions of subjecting an arylhydrazide with thiophosgene to form the thioisocyanate intermediate and ultimately the corresponding aryltriazole-3-thione framework were not successful. However, using a combination of carbon disulfide and 1,8-diazabicyclo[5.4.0]undec7-ene (DBU) to form the thioisocyanate intermediate was found to produce the novel tricyclic aryltriazole-3-thiones (5, 8a-c) in good yield.