نتایج جستجو برای: benzimidazole resistance

تعداد نتایج: 378063  

2012
Kwang Ha

The title compound, C(24)H(24)N(2)O(4)·CH(3)CN, a disubstituted benzimidazole, crystallized as an acetonitrile monosolvate. The benzene ring of the 2-eth-oxy-6-methyl-phenol substiuent is approximately perpendicular to the nearly planar benzimidazole ring system [maximum deviation = 0.016 (1) Å], making a dihedral angle of 84.27 (8)°. The benzene ring of the 2-eth-oxy-phenol substituent is incl...

2014
Dylan L Díaz-Chiguer Francisco Hernández-Luis Benjamín Nogueda-Torres Rafael Castillo Olivia Reynoso-Ducoing Alicia Hernández-Campos Javier R Ambrosio

Trypanosoma cruzi has a particular cytoskeleton that consists of a subpellicular network of microtubules and actin microfilaments. Therefore, it is an excellent target for the development of new anti-parasitic drugs. Benzimidazole 2-carbamates, a class of well-known broad-spectrum anthelmintics, have been shown to inhibit the in vitro growth of many protozoa. Therefore, to find efficient anti-t...

2014
Alison A Morrison Sian Mitchell Rebecca Mearns Iain Richards Jacqui B Matthews David J Bartley

Benzimidazole resistance is common amongst many ovine trichostrongylid nematodes species globally. Although anthelmintics have been used for over half a century in some areas of the world for the control of Nematodirus battus, resistance has never been detected. Veterinary investigations conducted in 2010 demonstrated reduced efficacy in a flock that had been treated previously with fenbendazol...

2005
Leon X. Liu Tom Hsiang

Bioassays using pellets of agar, thatch-agar and turfgrass-agar were developed using benzimidazole-sensitive Penicillium expansum, to detect the fungicide methyl 2-benzimidazole carbamate (MBC) which is the major fungitoxic degradation product of benomyl [methyl 1-(butylcarbamoyl)-2-benzimidazole carbamate] in thatch and turfgrass clippings. These bioassays were used to estimate the amount of f...

2009
Jing Dai

In the title compound, [Cu(C(11)H(13)N(3))(2)](NO(3))(2)·2H(2)O, synthesized by hydro-thermal reaction of Cu(NO(3))(2) and racemic 2-(pyrrolidin-2-yl)-1H-1,3-benzimidazole, the Cu(II) atom lies on an inversion centre. The distorted octa-hedral Cu(II) environment contains two planar trans-related N,N-chelating 2-(pyrrolidin-2-yl)-1H-1,3-benzimidazole ligands in the equatorial plane and two monod...

2009
Naser Eltaher Eltayeb Siang Guan Teoh Ching Kheng Quah Hoong-Kun Fun Rohana Adnan

In the title mol-ecule, C(15)H(14)N(2)O(2), the substituted benzene ring forms a dihedral angle of 4.15 (1)° with the benzimidazole ring system. An intra-molecular O-H⋯N hydrogen bond generates an S(6) ring motif. In the solid state, mol-ecules are linked into chains along the [001] via inter-molecular bifurcated N-H⋯(O,O) hydrogen bonds, which generate R(1) (2)(5) ring motifs. The crystal pack...

Journal: :Angewandte Chemie 2016
Han Zhang Qiang Xiao Xianghai Guo Najun Li Prashant Kumar Neel Rangnekar Mi Young Jeon Shaeel Al-Thabaiti Katabathini Narasimharao Sulaiman Nasir Basahel Berna Topuz Frank J Onorato Christopher W Macosko K Andre Mkhoyan Michael Tsapatsis

Two-dimensional zeolite nanosheets that do not contain any organic structure-directing agents were prepared from a multilamellar MFI (ML-MFI) zeolite. ML-MFI was first exfoliated by melt compounding and then detemplated by treatment with a mixture of H2 SO4 and H2 O2 (piranha solution). The obtained OSDA-free MFI nanosheets disperse well in water and can be used for coating applications. Deposi...

Journal: :Organic & biomolecular chemistry 2011
Kaushik Chanda Barnali Maiti Gorakh S Yellol Ming-Hsien Chien Min-Liang Kuo Chung-Ming Sun

An efficient soluble polymer-supported method has been developed for the parallel synthesis of substituted benzimidazole linked benzoxazoles using focused microwave irradiation. The key step involves the amidation of 4-hydroxy-3-nitrobenzoic acid with polymer-immobilized o-phenylenediamine. Application of mild acidic conditions promoted the ring closure to furnish the benzimidazole ring. After ...

2017
Mohana Rao Anguru Ashok Kumar Taduri Rama Devi Bhoomireddy

The structure activity relationships of 1H-benzimidazole-8-carboxylic acids (9a-9f), 1H-benzimidazole-8carboxylates (8a-8f) are described. Characteristic compounds showed improved demanding activity over a previously recognized 2-aminobenzimidazole series. In the lead optimization process and structure–activity relationship (SAR) of separate inhibitors based on modification of the lead molecule...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1979
D W Miles L B Townsend D L Miles H Eyring

The solution conformations of 2-substituted derivatives of 1-(beta-D-ribofuranosyl)benzimidazole have been determined by circular dichroism spectroscopy in aqueous solutions. It is shown that analogs with methyl, amino, or methylamino substituents at position 2 of the benzimidazole ring (position 8 of the purine ring) have predominantly anti conformations, whereas analogs with chloro, aza, meth...

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