135773-25-0Relevant articles and documents
Characterization of the binding site of the histamine H3 receptor. 1. Various approaches to the synthesis of 2-(1H-imidazol-4-yl)cyclopropylamine and histaminergic activity of (1R,2R)- and (1S,2S)-2-(1H-imidazol-4-yl)- cyclopropylamine
De Esch, Iwan J. P.,Vollinga, Roeland C.,Goubitz, Kees,Schenk, Henk,Appelberg, Ulf,Hacksell, Uli,Lemstra, Sylvia,Zuiderveld, Obbe P.,Hoffmann, Marcel,Leurs, Rob,Menge, Wiro M. P. B.,Timmerman, Henk
, p. 1115 - 1122 (1999)
Various approaches to the synthesis of all four stereoisomers of 2-(1H- imidazol-4-yl)cyclopropylamine (cyclopropylhistamine) are described. The rapid and convenient synthesis and resolution of trans-cyclopropylhistamine is reported. The absolute configur
Synthesis and Diels-Alder reactions of 4-vinylimidazoles
Lovely, Carl J.,Du, Hongwang,Dias, H. V. Rasika
, p. 1319 - 1322 (2001)
(equation presented) The synthesis of several 4-vinylimidazoles via Stille cross-coupling reactions of the corresponding protected 4-iodoimidazoles with tributylvinylstannane is described. These heterocyclic dienes are shown to be effective partners in th
Total synthesis of the putative structure of nagelamide D
Bhandari, Manojkumar R.,Sivappa, Rasapalli,Lovely, Carl J.
, p. 1535 - 1538 (2009)
A total synthesis of the putative structure of nagelamide D from imidazole is described. A Stille cross-coupling is used to construct the bis imidazole skeleton, and the pyrrolecarboxamides are introduced via a double Mitsunobu reaction using a pyrrolehyd
Exploring the orthosteric binding site of the γ-aminobutyric acid type a receptor using 4-(Piperidin-4-yl)-1-hydroxypyrazoles 3- or 5-imidazolyl substituted: Design, synthesis, and pharmacological evaluation
Krall, Jacob,Jensen, Claus H.,S?rensen, Troels E.,Nielsen, Birgitte,Jensen, Anders A.,Sander, Tommy,Balle, Thomas,Fr?lund, Bente
supporting information, p. 6536 - 6540 (2013/09/23)
A series of 4-(piperidin-4-yl)-1-hydroxypyrazole (4-PHP) 3- or 5-imidazolyl substituted analogues have been designed, synthesized, and characterized pharmacologically. All analogues showed binding affinities in the low micro- to low nanomolar range at nat
Certain Nitrogen Containing Bicyclic Chemical Entities for Treating Viral Infections
-
Page/Page column 92; 93, (2010/08/18)
Provided are certain chemical entities, pharmaceutical compositions, and methods of treatment of a member of the flaviviradae family of viruses such as hepacivirus (Hepatitis C or HCV).
Preparation and diels-alder chemistry of 4-vinylimidazoles
Lovely, Carl J.,Du, Hongwang,Sivappa, Rasapalli,Bhandari, Manojkumar R.,He, Yong,Dias, H. V. Rasika
, p. 3741 - 3749 (2008/02/04)
(Chemical Equation Presented) Various 4-vinylimidazole derivatives have been prepared from the corresponding 4-iodoimidazoles or from urocanic acid. Several methods for the elaboration of these vinylimidazoles and their Diels-Alder reactions are reported. All of the vinylimidazoles prepared in the course of this study react with N-phenylmaleimide quite readily with mild thermal activation providing a single cycloadduct, in most cases the initial, nonaromatic adduct. With more electron rich substrates, there is a tendency for these initial cycloadducts to undergo aromatization, ene reaction, and oxidation although this can be circumvented to a large extent by the choice of reaction conditions. Limited reactions were observed with other dienophiles, providing the expected cycloadducts in most cases, although an abnormal adduct was obtained in one case with dimethyl acetylene dicarboxylate. These substrates also participate in regioselective Diels-Alder reactions with monoactivated dienophiles, but require fairly forcing conditions, thus only providing the aromatized cycloadducts in modest yields. An investigation of substituent effects at the 2-position of the imidazole moiety was undertaken, in which electron-donating and weakly electron-withdrawing substituents are tolerated. In addition, several substrates with terminally substituted vinyl moieties have been investigated.
Efficient route to 1-dimethylsulfamoyl-4-iodoimidazole, isomerisation of 1-dimethylsulfamoyl-5-iodoimidazole to 1-dimethylsulfamoyl-4-iodoimidazole
Bhagavatula, Lakshmi,Premchandran, Ramiya H.,Plata, Daniel J.,King, Steven A.,Morton, Howard E.
, p. 729 - 732 (2007/10/03)
An efficient method has been developed for regioselective protection of 4-iodoimidazole using N,N-dimethylsulfamoyl chloride and 50% aqueous NaOH in THF leading to N,N-dimethylsulfamoyl-4-iodoimidazole(1) in 97% yield and >98% purity. The rearrangement of by-product 5-iodosulfonamide (2) to the desired product (1) is a key feature of this procedure.
Tetrahydronaphthyl and thiazole, oxazole or imidazole substituted ethene derivatives having retinoid-like activity, reduced skin toxicity and reduced teratogenecity
-
, (2008/06/13)
Compounds of the formula STR1 as herein defined, have retinoid-like activity and are substantially non-teratogenic and non-irritating to the skin.