Suppr超能文献

以1,3-二芳基硫脲作为脲模拟物合成芳基-(4-芳基-4H-[1,2,4]三唑-3-基)-胺的研究

Synthetic studies toward aryl-(4-aryl-4H-[1,2,4]triazole-3-yl)-amine from 1,3-diarylthiourea as urea mimetics.

作者信息

Natarajan Amarnath, Guo Yuhong, Arthanari Haribabu, Wagner Gerhard, Halperin Jose A, Chorev Michael

机构信息

Laboratory for Translational Research, 1 Kendall Square, Building 600 3rd Floor, Harvard Medical School, Cambridge, Massachusetts 02139, USA.

出版信息

J Org Chem. 2005 Aug 5;70(16):6362-8. doi: 10.1021/jo0508189.

Abstract

A thiophile-promoted synthesis of disubstituted 4H-[1,2,4]triazole-3-yl-amines as urea mimetics from the corresponding 1,3-disubstituted thioureas has been studied, and the scope and limitations of this reaction are presented. The reaction proceeds through the formation of a carbodiimide, followed by a sequential addition--dehydration with acyl hydrazides. 1,3-Branched dialkylthioureas result in the formation of the corresponding ureas. The electronic and steric effects of the substitution on the phenyl rings of the 1,3-diarylthioureas play an important role in the formation of the intermediary carbodiimde and the direction of the subsequent ring closure of the N-acyl hydrazide adduct.

摘要

研究了一种由亲硫试剂促进的、从相应的1,3-二取代硫脲合成作为尿素模拟物的二取代4H-[1,2,4]三唑-3-基胺的方法,并阐述了该反应的适用范围和局限性。该反应通过形成碳二亚胺进行,随后与酰肼依次进行加成-脱水反应。1,3-支链二烷基硫脲会生成相应的脲。1,3-二芳基硫脲苯环上取代基的电子效应和空间效应在中间体碳二亚胺的形成以及随后N-酰肼加合物的闭环方向中起着重要作用。

相似文献

2
Synthesis of new bis-1,2,4-triazole derivatives.新型双-1,2,4-三唑衍生物的合成
Molecules. 2006 Jun 21;11(6):469-77. doi: 10.3390/11060469.
8
Multicomponent synthesis of 1-aryl 1,2,4-triazoles.1-芳基-1,2,4-三唑的多组分合成。
Org Lett. 2013 Jul 19;15(14):3586-9. doi: 10.1021/ol401428x. Epub 2013 Jul 1.

引用本文的文献

本文引用的文献

2
Privileged structures: applications in drug discovery.特权结构:在药物发现中的应用
Comb Chem High Throughput Screen. 2004 Aug;7(5):473-94. doi: 10.2174/1386207043328544.
5
Protein kinase inhibitors from the urea class.
Curr Opin Drug Discov Devel. 2002 Sep;5(5):718-27.
6
New anti-HIV agents and targets.新型抗HIV药物及靶点。
Med Res Rev. 2002 Nov;22(6):531-65. doi: 10.1002/med.10021.
7
Pyrazole urea-based inhibitors of p38 MAP kinase: from lead compound to clinical candidate.
J Med Chem. 2002 Jul 4;45(14):2994-3008. doi: 10.1021/jm020057r.
8
A cis amide bond surrogate incorporating 1,2,4-triazole.
J Org Chem. 2002 May 17;67(10):3266-71. doi: 10.1021/jo010904i.

文献AI研究员

20分钟写一篇综述,助力文献阅读效率提升50倍。

立即体验

用中文搜PubMed

大模型驱动的PubMed中文搜索引擎

马上搜索

文档翻译

学术文献翻译模型,支持多种主流文档格式。

立即体验