80304-50-3Relevant academic research and scientific papers
A Continuous-Flow Method for the Desulfurization of Substituted Thioimidazoles Applied to the Synthesis of Etomidate Derivatives
Baumann, Marcus,Baxendale, Ian R.
, p. 6518 - 6524 (2017/12/02)
A simple yet robust flow set-up for the efficient desulfurization of a series of thioimidazoles is presented, which generates the corresponding imidazole derivatives in high yields. The strategic choice of peristaltic over piston pumps allowed reliable delivery of the heterogeneous stream of the thioimidazole substrate into a T-piece where it reacted with NaNO2 in the presence of acetic acid. This approach enabled the controlled and safe formation of the reactive nitrosonium species without uncontrolled exposure to hazardous nitrous oxide by-products as observed in related batch protocols. The value of the resulting imidazole products was further demonstrated by their conversion into various esters representing new derivatives of the known analgesic etomidate through an efficient one-pot Corey–Gilman–Ganem oxidation procedure.
AZOLE HETEROCYCLIC COMPOUND, PREPARATION METHOD, PHARMACEUTICAL COMPOSITION AND USE
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Paragraph 0243, (2014/05/20)
The present invention relates to the filed of pharmarcutical chemistry, and in particular, to a novel class of azole compounds represented by general formula (I), (II) or (III) amd a preparation method thereof, a pharmarcutical composition with the compounds as active components, and a use of the azole compounds and the pharmarcutical composition in the preparation of a medicament for treatment of diseases associated with Lp-PLA2 enzyme activities, wherein each substituent is as deinfed in the specifictaion.
AZOLE HETEROCYCLIC COMPOUND, PREPARATION METHOD, PHARMACEUTICAL COMPOSITION AND USE
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Paragraph 0592, (2014/06/25)
The present invention relates to the field of pharmaceutical chemistry, and in particular, to a novel class of azole compounds represented by general formula (I), (II) or (III) and a preparation method thereof, a pharmaceutical composition with the compounds as active components, and a use of the azole compounds and the pharmaceutical composition in the preparation of a medicament for treatment of diseases associated with Lp-PLA2 enzyme activities, wherein each substituent is as defined in the specification.
Preparation of 2'-13c-l-histidine starting from 13c-thiocyanate: Synthetic access to any site-directed stable isotope enriched l-histidine
Talab, Sarra,Taha, Kamal Khalifa,Lugtenburg, Johan
, p. 1023 - 1033 (2014/02/14)
1-Benzyl-2-(methylthio)-imidazole-5-ketone is obtained in a few simple steps starting from thiocyanate and glycine amide (glycin). Subsequent treatment with diethyl phosphorocyanidate and functional group manipulations gives 1-benzyl-5-chloromethylimidazolium chloride. This compound is converted under mild O'Donnell conditions into the corresponding L-histidine derivative. After deprotection L-histidine is obtained in good yield and 99% enantiomeric excess. 2'-13C-L-Histidine has been obtained via this new scheme with high (99%) 13C incorporation starting with commercially available 13C- thiocyanate. This synthetic scheme allows access to any isotopomer of L-histidine and many other biologically important imidazole derivatives.
Structure-based design of imidazole-containing peptidomimetic inhibitors of protein farnesyltransferase
Ohkanda, Junko,Strickland, Corey L.,Blaskovich, Michelle A.,Carrico, Dora,Lockman, Jeffrey W.,Vogt, Andreas,Bucher, Cynthia J.,Sun, Jiazhi,Qian, Yimin,Knowles, David,Pusateri, Erin E.,Sebti, Said M.,Hamilton, Andrew D.
, p. 482 - 492 (2008/02/04)
A series of imidazole-containing peptidomimetic PFTase inhibitors and their co-crystal structures bound to PFTase and FPP are reported. The structures reveal that the peptidomimetics adopt a similar conformation to that of the extended CVIM tetrapeptide,
Novel N-(4-piperidinyl)benzamide antimalarials with mammalian protein farnesyltransferase inhibitory activity
Ryckebusch, Adina,Gilleron, Pauline,Millet, Regis,Houssin, Raymond,Lemoine, Amelie,Pommery, Nicole,Grellier, Philippe,Sergheraert, Christian,Henichart, Jean-Pierre
, p. 1324 - 1326 (2007/10/03)
Protein farnesyltransferase of Plasmodium falciparum is a potential target in the treatment of malaria for which increased drug resistance is observed. The design, synthesis and evaluation of a series of N-(4-piperidinyl)benzamides is reported. The most potent compounds showed in vitro activity against the parasite at submicromolar concentrations.
Potent and selective farnesyl transferase inhibitors
Millet, Régis,Domarkas, Juozas,Houssin, Raymond,Gilleron, Pauline,Goossens, Jean-Fran?ois,Chavatte, Philippe,Logé, Cédric,Pommery, Nicole,Pommery, Jean,Hénichart, Jean-Pierre
, p. 6812 - 6820 (2007/10/03)
We recently described a novel series of CA1A2X peptidomimetics as farnesyl transferase inhibitors (FTIs). These compounds possess an N-(4-piperidinyl)benzamide scaffold mimicking A1A 2 residue. Extensive exploration of structure-activity relationships revealed that replacement of cysteine by substituted benzylimidazoles provided nanomolar FTIs with in vitro activities (18e, IC50 = 4.60 nM on isolated enzyme, EC50 = 20.0 nM for growth inhibition on a tumor cell line). The molecular docking of 18e and 19e in the active site of the enzyme provided details of key interactions with the protein and showed that the methionine or phenylalanine residue fits into the aryl binding site.
Parallel liquid synthesis of N,N′-disubstituted 3-amino azepin-2-ones as potent and specific farnesyl transferase inhibitors
Le Diguarher, Thierry,Ortuno, Jean-Claude,Dorey, Gilbert,Shanks, David,Guilbaud, Nicolas,Pierre, Alain,Fauchere, Jean-Luc,Hickman, John A.,Tucker, Gordon C.,Casara, Patrick J.
, p. 3193 - 3204 (2007/10/03)
A rapid structure-activity study was performed by parallel liquid synthesis on N,N′-disubstitution of 3-amino azepin-2-one to afford potent and specific farnesyl transferase inhibitors with low nM enzymatic and cellular activities. The activities of the selected compounds were validated in vivo, and compounds 41a and 44a presented significant antitumour activity.
Preparation of a clinically investigated ras farnesyl transferase inhibitor
Maligres, Peter E.,Waters, Marjorie S.,Weissman, Steven A.,McWilliams, J. Christopher,Lewis, Stephanie,Cowen, Jennifer,Reamer, Robert A.,Volante,Reider, Paul J.,Askin, David
, p. 229 - 241 (2007/10/03)
The synthesis of ras farnesyl-protein transferase inhibitor 1 is described on a multi-kilogram scale. Retrosynthetic analysis reveals chloromethylimidazole 2 and a piperazinone 3 as viable precursors. The 1,5-disubstituted imidazole system was regioselectively assembled via an improved Marckwald imidazole synthesis. A new imidazole dethionation procedure has been developed to convert the Marckwald mercaptoimidazole product to the desired imidazole. This methodology was found to be tolerant of a variety of functional groups providing good to excellent yields of 1,5-disubstituted imidazoles. A new Mitsunobu cyclization strategy was developed to prepare the arylpiperazinone fragment 3.
Process for preparing a 1-substituted 5-hydroxymethyl imidazole
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, (2008/06/13)
A process for preparing a 1-substituted 5-hydroxymethylimidazole of the formula: , wherein R represents alkyl, hydroxyalkyl, allyl, or substituted or unsubstituted arylmethyl or diarylmethyl, comprising the step of reacting a 1-substituted 2-mercapto-5-hy
