- Synthesis and Pharmacological Activity of C(2)-Substituted Benzimidazoles
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Series of new compounds containing 2-pyrrolidinomethyl and 2-piperazinomethyl groups and 2-morpholino and 2-morpholinoethylamine substituents were synthesized. The antiglycation activities of 2-(morpholin-4-yl)-1-(propen-2-en-1-yl)-1H-benzimidazole and 2-(morpholin-4-yl)-1-[2-(morpholin-4-yl)ethyl]-1H-benzimidazole were comparable to that of aminoguanidine. Some compounds exhibited moderate antiserotonin, anti-angiotensin, antioxidant, and dipeptidyl peptidase-4 (DPP-4) inhibitory effects.
- Zhukovskaya,Spasov,Yakovlev,Kosolapov,Mal’tsev,Morkovnik,Babkova,Brigadirova,Agatsarskaya, Ya. V.,Taran,Miroshnikov,Sultanova,Kornilov,Anisimova
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- Metal-Free Aminomethylation of Aromatic Sulfones Promoted by Eosin Y
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A metal-free α-aminomethylation of heteroaryls promoted by eosin Y under green light irradiation is reported. A large variety of α-trimethylsilylamines as precursor of α-aminomethyl radical species were engaged to functionalize sulfonyl-heteroaryls following a Homolytic Aromatic Substitution (HAS) pathway. This method has provided a range of α-aminoheteroaryl compounds including a functionalized natural product. The mechanism of this late-stage functionalization of aryls was investigated and suggests the formation of a sulfonyl radical intermediate over a reductive quenching cycle.
- Thierry, Thibault,Pfund, Emmanuel,Lequeux, Thierry
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p. 14826 - 14830
(2021/10/01)
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- METHODS AND COMPOSITIONS FOR TREATING EPILEPSY
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Provided, inter alia, are methods and compositions for treating epilepsy. In one aspect, provided herein is a method of selecting a compound for treating epilepsy, said method includes, contacting a test compound with 5-hydroxytryptamine-2B receptor (5-HT2B), and measuring the 5-HT2B agonistic activity of the test compound. In another aspect, provided herein is a method of treating an epilepsy in a subject in need thereof. The method includes administering to said subject an effective amount of a 5-HT2B specific receptor agonist.
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- Hypervalent iodine-mediated synthesis of benzoxazoles and benzimidazoles via an oxidative rearrangement
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A Beckmann-type rearrangement of o-hydroxy and o-aminoaryl N-H ketimines has been developed to prepare benzoxazoles and N-Ts benzimidazoles, respectively. The ketimine derivatives were easily prepared by condensation of ammonia with the corresponding ketones and (diacetoxyiodo)benzene was found to act as an efficient oxidant to trigger the [1,2]-aryl migration towards the formation of the desired heterocycles. Depending on the substitution pattern, the results revealed another mechanistic pathway through which benzisoxazoles or 1H-indazoles could be formed. The Beckmann-type rearrangement strategy was applied to the synthesis of benzimidazole-containing biorelevant targets such as chlormidazole and clemizole.
- Zhang, Xiaohui,Huang, Ruofeng,Marrot, Jér?me,Coeffard, Vincent,Xiong, Yan
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p. 700 - 708
(2015/02/02)
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- Selective inhibition of heme oxygenase-2 activity by analogs of 1-(4-chlorobenzyl)-2-(pyrrolidin-1-ylmethyl)-1H-benzimidazole (clemizole): Exploration of the effects of substituents at the N-1 position
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Several analogs based on the lead structure of 1-(4-chlorobenzyl)-2- (pyrrolidin-1-ylmethyl)-1H-benzimidazole (clemizole) were synthesized and evaluated as novel inhibitors of heme oxygenase (HO). Many of the compounds were found to be potent and highly s
- Vlahakis, Jason Z.,Vukomanovic, Dragic,Nakatsu, Kanji,Szarek, Walter A.
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p. 6788 - 6795
(2013/10/22)
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