150058-27-8Relevant articles and documents
Method for Producing Alpha-Azidoaniline Derivative or Alpha,AlphaPrime-Diazide Derivative
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, (2021/08/13)
Provided is a method for producing an α-azidoaniline derivative or an α,α′-diazide derivative using an aniline derivative as a starting material that includes a method for producing an α-azidoaniline derivative or an α,α′-diazide derivative represented by Formula (2), including the step of: contacting an aniline derivative represented by Formula (1) with an azidating agent in presence of water, a persulfate, and a copper compound.
Synthesis and biological evaluation of novel benzimidazole derivatives bearing a heterocyclic ring at 4/5 position
Wubulikasimu, Reyila,Yang, Yanbing,Xue, Fei,Luo, Xianjin,Shao, Dongping,Li, Yuhuan,Gao, Rongmei,Ye, Weidong
, p. 2297 - 2304 (2013/09/24)
A series of novel benzimidazole derivatives bearing a heterocyclic ring as oxadiazole (21-32), thiadiazole (33-34), triazole (35-36) were synthesized and evaluated for their activities against Coxsackie virus B3 and B6 in Vero cells. Compounds 21-26, 31-36 with moieties of 2'-pyridyl, 3'-pyridyl and 4'-pyridyl at the 2-position and oxadiazoles, thiadiazole, or triazole substituent at the 4- or 5-position generally displayed activities against CVB3 and CVB6. Especially compound 24 (IC50 = 1.08 μg/mL, SI = 61.7 against CVB3) was the promising candidate as lead compound for anti-enteroviral drug. It was observed in the incorporation of heterocyclic rings in benzimidazole at the 5-position could enhance their biological activities.
Nonpeptide Angiotensin II Receptor Antagonists. Synthesis and Biological Activity of Benzimidazolecarboxylic Acids
Kubo, Keiji,Kohara, Yasuhisa,Imamiya, Eiko,Sugiura, Yoshihiro,Inada, Yoshiyuki,et al.
, p. 2182 - 2195 (2007/10/02)
A series of 2-substituted-1--1H-benzimidazole-7-carboxylic acids was prepared from the key intermediate 3-amino-2-amino>benzoate (6a-c) in order to clarify the structure-activity relationships of various analogues of 2-butyl-1-methyl>-1H-benzimidazole-7-carboxylic acid (CV-11194), a potent and long acting angiotensin II (AII) receptor antagonist.The AII antagonistic activity of the benzimidazoles was investigated by in vitro assays, which included an AII receptor binding assay and AII-induced vasocontraction assay, as well as by in vivo assays such as an AII-induced pressor response in rats.Most of the benzimidazoles showed high affinity for the AII receptor (IC50 value, 10-6-1--7 M) and inhibited the AII-induced pressor response at 1 or 3 mg/kg po, and the effects were more potent than those of CV-11194 and DuP 753.The structure-activity relationship studies on the binding affinity and the inhibition of AII-induced pressor response suggested that straight chains of a certain length (e.g., ethoxy groups, ethyl groups) were the best as substituents at the 2-position and that their steric factors, lipohilicity, and electronic effects affected the potency of the AII antagonistic action.Both a carboxyl group at the 7-position and a tetrazole ring at the 2'-position were particularly important for potent and orally active AII antagonistic activity and a long-acting hypotensive effect.The representative compound, 2-ethoxy-1-methyl>-1H-benzimidazole-7-carboxylic acid (26b, CV-11974), inhibited the specific binding of AII to bovine adrenal cortical membrane with an IC50 value of 1.1*10-7 M.The AII-induced contraction of rabbit aortic strips was antagonized by CV-11974 (IC50 value, 3.0*1--10 M).Oral administration of CV-11974 to conscious normatensive rats at 1 mg/kg resulted in long-lasting inhibition of the AII-induced pressor response.CV-11974 at 0.1-1 mg/kg iv reduced blood pressure dose-dependently in spontaneously hypertensive rats.
