Neue 1H-Tetrazol-5-thiol-Derivate als Pestizide, 2. Mitt. Cyanimidodithiokohlens�ureester
摘要:
Depending on the reaction conditions, tetrazoles and tetrazolines were synthesized from 1H-tetrazol-5-thiol derivatives. The heteroring was substituted by cyanodithioimidocarbonate to give either -S-CH2-S- or -S-CH2-N=derivatives. Many of them show fungicide activity.
Reagents for one-step construction of conjugated bromodienes from aldehydes are described. Various 1-alkyl- and 1-aryl-tetrazoyl bromoallylic sulfones were synthesized and evaluated in bromodiene synthesis. 1-Alkyl-tetrazoyl sulfones selectively afforded (1E,3Z)-bromodienes, while 1-aryl-tetrazoyl sulfones resulted in low selectivity.
1-Alkyl-5-((di)alkylamino) Tetrazoles: Building Blocks for Peptide Surrogates
作者:Andriy V. Tymtsunik、Vitaliy A. Bilenko、Serhiy O. Kokhan、Oleksandr O. Grygorenko、Dmitriy M. Volochnyuk、Igor V. Komarov
DOI:10.1021/jo2022235
日期:2012.1.20
An approach to the synthesis of 1-alkyl-5-((di)allcylamino)tetrazoles by nucleophilic substitution in 1-alkyl-5-sulfonyl-tetrazoles with anions generated from the primary secondary amines was developed. Tolerance of the method to the presence of some functional groups (i.e., protected amine) in both components of the reaction was demonstrated. Obtained tetrazoles are promising building blocks for the design of peptide surrogates, in particular, for replacement approaches of alkyl urea derivatives.
Modulation of 11β-hydroxysteroid dehydrogenase type 1 activity by 1,5-substituted 1H-tetrazoles
作者:Scott P. Webster、Margaret Binnie、Kirsty M.M. McConnell、Karen Sooy、Peter Ward、Michael F. Greaney、Andy Vinter、T. David Pallin、Hazel J. Dyke、Matthew I.A. Gill、Ines Warner、Jonathan R. Seckl、Brian R. Walker
DOI:10.1016/j.bmcl.2010.04.055
日期:2010.6
Inhibitors of 11 beta-hydroxysteroid dehydrogenase (11 beta-HSD1) show promise as drugs to treat metabolic disease and CNS disorders such as cognitive impairment. A series of 1,5-substituted 1H-tetrazole 11 beta-HSD1 inhibitors has been discovered and chemically modified. Compounds are selective for 11 beta-HSD1 over 11 beta-HSD2 and possess good cellular potency in human and murine 11 beta-HSD1 assays. A range of in vitro stabilities are observed in human liver microsome assays. (C) 2010 Elsevier Ltd. All rights reserved.