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Jacco van de Streek et al.
Acta crystallographica. Section B, Structural science, 65(Pt 2), 200-211 (2009-03-21)
The crystal structures of six industrially produced benzimidazolone pigments [Pigment Orange 36 (beta phase), Pigment Orange 62, Pigment Yellow 151, Pigment Yellow 154 (alpha phase), Pigment Yellow 181 (beta phase) and Pigment Yellow 194] were determined from laboratory X-ray powder
Brahim Lakhrissi et al.
Carbohydrate research, 343(3), 421-433 (2007-12-25)
New water-soluble benzimidazolone derivatives were synthesized. In the first approach, di-N-glycosyl and mono-N-alkyl-N-glycosyl compounds were obtained by grafting C-6-activated glycosides onto benzimidazolone. In the second approach, benzimidazolone derivatives bearing a glucosyl unit were synthesized using an efficient glycosylation method. Every
Cássia V Garcia et al.
Journal of pharmaceutical and biomedical analysis, 46(1), 88-93 (2007-10-20)
Rabeprazole sodium is a proton pump inhibitor, used in acid-related disorders, like peptic ulcers and gastroesophageal reflux. It is known to be an acid-labile drug, however, few data about its stability under other factors are available. The aim of this
Don R Finley et al.
Bioorganic & medicinal chemistry letters, 16(21), 5691-5694 (2006-08-26)
The synthesis and biological evaluation of a series of benzimidazolone beta(3) adrenergic receptor agonists are described. A trend toward the reduction of rat atrial tachycardia upon increasing steric bulk at the 3-position of the benzimidazolone moiety was observed.
Antonio Nardi et al.
Planta medica, 69(10), 885-892 (2003-12-04)
Large-conductance calcium-activated potassium channels, also known as BK or Maxi-K channels, occur in many types of cell, including neurons and myocytes, where they play an essential role in the regulation of cell excitability and function. These properties open a possible
Qun Li et al.
Bioorganic & medicinal chemistry letters, 15(11), 2918-2922 (2005-05-25)
A series of analogs of tipifarnib (1) has been synthesized as inhibitors of FTase by substituting the benzimidazolones and indoles for the 2-quinolone of tipifarnib. The novel benzimidazolones are potent and selective FTase inhibitors (FTIs) with IC(50) values of the
Cory R Theberge et al.
Bioorganic & medicinal chemistry letters, 18(23), 6122-6125 (2008-10-25)
The previously disclosed spirohydantoin-based CGRP receptor antagonists were optimized for potency through modification of the benzimidazolone substituents. Compounds were identified which had minimal shift in the cAMP functional assay containing 50% human serum. Blockade of CGRP-mediated vasodilation was observed with
V Madhura et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 84(1), 137-143 (2011-10-05)
Electronic absorption and fluorescence spectra of mono, di, and tri-nitro benzimidazolones are measured at room temperature (298 K) in nine solvents with different polarities and the observed shifts are compared with benzimidazolone. Ground and excited state electric dipole moments are
Ahmed Kamal et al.
Mini reviews in medicinal chemistry, 6(1), 71-89 (2006-02-07)
Quinoxaline, quinazoline and benzimidazole based templates have been synthesized on solid-support employing different methodologies. This review enlightens academic and industrial examples of combinatorial synthesis for this type of heterocycles that appeared in the literature in the last decade. Hence, some
P C Pan et al.
Bioorganic & medicinal chemistry letters, 9(11), 1537-1540 (1999-07-01)
A method for soluble, inexpensive polymer-supported synthesis of aryl amines and benzimidazolone on the basis of nucleophilic aryl substitution (S(N)Ar) is described. This method involves a direct coupling reaction between resin bound aryl fluoride and amines at ambient temperature. The
Takayuki Fukaya et al.
Bioorganic & medicinal chemistry, 21(5), 1257-1267 (2013-01-29)
The 18 kDa translocator protein (TSPO) was identified as a discrete receptor for diazepam (1). Since TSPO in the central nervous system (CNS) is believed to regulate neurosteroids biosynthesis, selective TSPO ligands are expected to be useful in the treatment
Emanuela Caci et al.
American journal of physiology. Lung cellular and molecular physiology, 285(1), L180-L188 (2003-03-26)
Activators of the CFTR Cl- channel may be useful for therapy of cystic fibrosis. Short-circuit current (Isc) measurements were done on human bronchial epithelial cells to characterize the best flavone and benzimidazolone CFTR activators identified by lead-based combinatorial synthesis and
Milan Bruncko et al.
Bioorganic & medicinal chemistry letters, 20(24), 7503-7506 (2010-11-26)
We describe the development of a novel series of N-aryl-benzimidazolone HSP90 inhibitors (9) targeting the N-terminal ATP-ase site. SAR development was influenced by structure-based design based around X-ray structures of ligand bound HSP90 complexes. Lead compounds exhibited high binding affinities
Anna-Maria Monforte et al.
Bioorganic & medicinal chemistry, 17(16), 5962-5967 (2009-07-21)
Non-nucleoside reverse transcriptase inhibitors (NNRTIs) have become very important components in the antiretroviral combination therapies used to treat HIV. Recently, our group identified some 1,3-dihydrobenzimidazol-2-one derivatives and their sulfones as a potent and novel class of NNRTIs. We herein report
Hirofumi Omura et al.
Bioorganic & medicinal chemistry letters, 18(11), 3310-3314 (2008-04-29)
Benzimidazolone derivatives were discovered as novel CB2 selective agonists. Structure Activity Relationship (SAR) studies around them were examined to improve metabolic stability. Compound 39 exhibited excellent metabolic stability in human liver microsomes (HLM) and significant attenuation of the chronic colonic
Eduard Badarau et al.
Bioorganic & medicinal chemistry letters, 19(6), 1600-1603 (2009-02-25)
A new group of serotoninergic 5-HT(1A) or 5-HT(7) receptor ligands was identified. These compounds were designed and synthesized on a benzimidazolone scaffold and they enrich the well-known arylpiperazine class of 5-HT ligands. Diverse pharmacomodulations induced a shift in the affinity
Ronald Palin et al.
Bioorganic & medicinal chemistry letters, 15(3), 589-593 (2005-01-25)
A series of 3-phenoxypropyl piperidine analogues have been discovered as novel ORL1 receptor agonists. Structure-activity relationships have been explored around the 3-phenoxypropyl region with several potent and selective analogues identified.
P Zhang et al.
Bioorganic & medicinal chemistry letters, 11(20), 2747-2750 (2001-10-10)
Novel 6-aryl benzimidazolones and benzothiazolones were prepared and examined as bioisosteres of the recently reported 6-aryl dihydroquinolines (1) for progesterone receptor (PR) antagonist activities. PR antagonist activities increased when compounds 9c-f possessed a more lipophilic group at position-1 and pendent
Rapid liquid-phase combinatorial synthesis of heterocyclic libraries.
Chung-Ming Sun
Methods in molecular biology (Clifton, N.J.), 201, 141-166 (2002-10-03)
S M Candura et al.
British journal of pharmacology, 118(8), 1965-1970 (1996-08-01)
1. In strips of human isolated detrusor muscle, the 5-hydroxytryptamine (5-HT) receptor (5-HT4) that mediates facilitation of neuromuscular cholinergic transmission was further characterized by using 5-HT and a series of ligands known for their 5-HT4 agonist (5-methoxytryptamine: 5-MeOT, cisapride, (R,S)-zacopride
Ho Yin Lo et al.
Bioorganic & medicinal chemistry letters, 21(15), 4533-4539 (2011-07-08)
A new class of chymase inhibitor featuring a benzimidazolone core with an acid side chain and a P(1) hydrophobic moiety is described. Incubation of the lead compound with GSH resulted in the formation of a GSH conjugate on the benzothiophene
Mike Frohn et al.
Bioorganic & medicinal chemistry letters, 17(23), 6633-6637 (2007-10-09)
We report the development of the novel N-substituted benzimidazole 11 as a potent and selective human formyl peptide receptor-like 1 (hFPRL1) agonist. This compound and its less active enantiomer 12 were identified as useful tools for studying receptor function in
Kim F McClure et al.
Journal of medicinal chemistry, 48(18), 5728-5737 (2005-09-02)
Mimics of the benzimidazolone nucleus found in inhibitors of p38 kinase are proposed, and their theoretical potential as bioisosteres is described. A set of calculated descriptors relevant to the anticipated binding interaction for the fragments 1-methyl-1H-benzotriazole 5, 3-methyl-benzo[d]isoxazole 3, and
Susanna Vogliardi et al.
European journal of mass spectrometry (Chichester, England), 11(1), 43-51 (2005-06-11)
The behaviour in electrospray conditions of a series of thiazol-benzimidazolones and 2- benzimidazolylsulphanyl ethanones has been studied by means of multiple tandem mass spectrometry experiments. Even though the experimental conditions were the same, different behaviour is observed for the two
S M De Baere et al.
Journal of analytical toxicology, 22(1), 18-26 (1998-03-10)
A gas chromatographic procedure with nitrogen-phosphorus detection was developed for the quantitative determination of 1-(4-piperidinyl)-1,3-dihydro-2H-benzimidazole-2-one, the basic metabolite of the narcotic analgesic bezitramide (Burgodin), in urine. Gas chromatography with mass spectrometric detection was used for confirmation. An internal standard with
Jana A Lewis et al.
Bioorganic & medicinal chemistry letters, 19(7), 1916-1920 (2009-03-10)
This Letter describes the synthesis and structure-activity-relationships (SAR) of isoform-selective PLD inhibitors. By virtue of the installation of alternative halogenated piperidinyl benzimidazolone privileged structures, in combination with a key (S)-methyl group, novel PLD inhibitors with low nM potency and unprecedented
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