Novel inhibitors of bacterial two-component systems with gram positive antibacterial activity: pharmacophore identification based on the screening hit closantel.

Abstract:

:This SAR study has shown that the salicylanilide is the pharmacophore for inhibition of the bacterial two-component system. Hydrophobic substituents improve the potency of inhibitors in this series; however, hydrophobicity is not the sole determinant for inhibition; structural and electronic requirements also exist. Closantel (1) was found to inhibit a two-component system and to have antibacterial activity against drug resistant S. aureus and E. faecium.

journal_name

Bioorg Med Chem Lett

authors

Hlasta DJ,Demers JP,Foleno BD,Fraga-Spano SA,Guan J,Hilliard JJ,Macielag MJ,Ohemeng KA,Sheppard CM,Sui Z,Webb GC,Weidner-Wells MA,Werblood H,Barrett JF

doi

10.1016/s0960-894x(98)00326-6

subject

Has Abstract

pub_date

1998-07-21 00:00:00

pages

1923-8

issue

14

eissn

0960-894X

issn

1464-3405

pii

S0960894X98003266

journal_volume

8

pub_type

杂志文章
  • Lead optimization of a pyridine-carboxamide series as DGAT-1 inhibitors.

    abstract::The structure-activity relationship studies of a novel series of carboxylic acid derivatives of pyridine-carboxamides as DGAT-1 inhibitors is described. The optimization of the initial lead compound 6 based on in vitro and in vivo activity led to the discovery of key compounds 10j and 17h. ...

    journal_title:Bioorganic & medicinal chemistry letters

    pub_type: 杂志文章

    doi:10.1016/j.bmcl.2012.12.040

    authors: Ting PC,Lee JF,Zorn N,Kim HM,Aslanian RG,Lin M,Smith M,Walker SS,Cook J,Van Heek M,Lachowicz J

    更新日期:2013-02-15 00:00:00

  • A neural network based prediction of octanol-water partition coefficients using atomic5 fragmental descriptors.

    abstract::An artificial neural network based approach using Atomic5 fragmental descriptors has been developed to predict the octanol-water partition coefficient (logP). We used a pre-selected set of organic molecules from PHYSPROP database as training and test sets for a feedforward neural network. Results demonstrate the super...

    journal_title:Bioorganic & medicinal chemistry letters

    pub_type: 杂志文章

    doi:10.1016/j.bmcl.2003.12.024

    authors: Molnár L,Keseru GM,Papp A,Gulyás Z,Darvas F

    更新日期:2004-02-23 00:00:00

  • Synthesis and biological evaluation of L-cysteine derivatives as mitotic kinesin Eg5 inhibitors.

    abstract::Inhibition of Eg5 represents a novel approach for the treatment of cancer. Here, we report the synthesis and structure-activity relationship of S-trityl-L-cysteine (STLC) derivatives as Eg5 inhibitors. Some of these derivatives such as 4f demonstrated enhanced inhibitory activity against Eg5 and induced mitotic arrest...

    journal_title:Bioorganic & medicinal chemistry letters

    pub_type: 杂志文章

    doi:10.1016/j.bmcl.2007.04.101

    authors: Ogo N,Oishi S,Matsuno K,Sawada J,Fujii N,Asai A

    更新日期:2007-07-15 00:00:00

  • 1,8-Naphthalimide-Cu(ІІ) ensemble based turn-on fluorescent probe for the detection of thiols in organic aqueous media.

    abstract::A 1,8-naphthalimide-Cu(II) ensemble was rationally designed and synthesized as a new turn-on fluorescent probe utilizing the 'chemosensing ensemble' method for detections of thiols (Cys, Hcy and GSH) with high selectivity over other α-amino acids at pH 7.4 in organic aqueous media (EtOH/HEPES, v/v=9:1). The recognitio...

    journal_title:Bioorganic & medicinal chemistry letters

    pub_type: 杂志文章

    doi:10.1016/j.bmcl.2013.03.004

    authors: Shi YG,Yao JH,Duan YL,Mi QL,Chen JH,Xu QQ,Gou GZ,Zhou Y,Zhang JF

    更新日期:2013-05-01 00:00:00

  • Synthesis of 14 C-radiolabeled oligonucleotides with a novel phosphoramidite reagent.

    abstract::A novel solid-phase synthesis of 5'-radiolabeled oligonucleotides is described. The labeling reaction is carried out by the phosphoramidite method with the aid of [4,6-di-14C]-5'-dimethoxytritylthymidine building block 1. The feasibility of the method is demonstrated by preparation of 3'-phosphorylated dodecathymidyla...

    journal_title:Bioorganic & medicinal chemistry letters

    pub_type: 杂志文章

    doi:10.1016/s0960-894x(98)00028-6

    authors: Guzaev A,Boyode B,Balow G,Tivel KL,Manoharan M

    更新日期:1998-05-05 00:00:00

  • Synthesis and characterization of bis(mu-hydroxo)diiron(III) complex of N-(4-nitro-2-hydroxy)phenylmethyl-N-(2-pyridylethyl)-N-(2-pyridylmethyl)amine and hydroxylation reaction of alkane.

    abstract::Bis(mu-hydroxo)diiron(III) complex, [Fe2III(mu-OH)2(NE)2](NO3)2 x 3H2O (3) (N-(4-nitro-2-hydroxy)phenylmethyl-N-(2-pyridylethyl)-N-(2-pyridylmethyl)amine = HNE, where H denotes a dissociable proton of the p-nitrophenol group), has been prepared and characterized by X-ray crystallography, electronic and magnetic spectr...

    journal_title:Bioorganic & medicinal chemistry letters

    pub_type: 杂志文章

    doi:10.1016/s0960-894x(01)00070-1

    authors: Kurosaki H,Yoshida H,Ito M,Koike H,Higuchi E,Goto M

    更新日期:2001-03-26 00:00:00

  • A facile route to paclitaxel C-10 carbamates.

    abstract::A general protocol for the synthesis of paclitaxel C-10 carbamates is described. The method entails MeI-mediated activation of 2'-O-TBS-7-O-TES-10-O-deacetyl-paclitaxel-10-O-carbonylimidazole prior to reaction with amines. This method is effective for the synthesis of paclitaxel C-10 derivatives, including bifunctiona...

    journal_title:Bioorganic & medicinal chemistry letters

    pub_type: 杂志文章

    doi:10.1016/j.bmcl.2005.03.072

    authors: Ballatore C,Aspland SE,Castillo R,Desharnais J,Eustaquio T,Sun C,Castellino AJ,Smith AB 3rd

    更新日期:2005-05-16 00:00:00

  • Synthesis and anticancer activity of side chain analogs of the crambescidin alkaloids.

    abstract::Twenty three side chain analogs of the crambescidin alkaloids were prepared from the corresponding pentacyclic zwitterionic core acid. In the crambescidin 800 and 657 series, potency increased with increasing chain length. In addition, substantial variations in tumor selectivity with structure were seen. Crambescidin ...

    journal_title:Bioorganic & medicinal chemistry letters

    pub_type: 杂志文章

    doi:10.1016/j.bmcl.2004.04.071

    authors: Aron ZD,Pietraszkiewicz H,Overman LE,Valeriote F,Cuevas C

    更新日期:2004-07-05 00:00:00

  • Novel 3,5-diaryl pyrazolines as human acyl-CoA:cholesterol acyltransferase inhibitors.

    abstract::A series of pyrazoline derivatives were prepared for evaluating their acyl-CoA:cholesterol acyltransferase activities. 3-(3,5-Di-tert-butyl-4-hydroxyphenyl)-5-(multi-substituted 4-hydroxyphenyl)-2-pyrazolines 4a-i were shown in vitro inhibitory activity on hACAT-1 and -2. ...

    journal_title:Bioorganic & medicinal chemistry letters

    pub_type: 杂志文章

    doi:10.1016/j.bmcl.2004.03.079

    authors: Jeong TS,Kim KS,An S,Cho KH,Lee S,Lee WS

    更新日期:2004-06-07 00:00:00

  • Synthesis and evaluation of 1-(4-[¹⁸F]fluoroethyl)-7-(4'-methyl)curcumin with improved brain permeability for β-amyloid plaque imaging.

    abstract::Alzheimer's disease is characterized by the accumulation of β-amyloid (Aβ) plaques and neurofibrillary tangles (NFTs) in the brain. We previously developed [(18)F]fluoropropylcurcumin ([(18)F]FP-curcumin), which demonstrated excellent binding affinity (K(i)=0.07 nM) for Aβ(1-40) aggregates and good pharmacokinetics in...

    journal_title:Bioorganic & medicinal chemistry letters

    pub_type: 杂志文章

    doi:10.1016/j.bmcl.2011.08.003

    authors: Lee I,Yang J,Lee JH,Choe YS

    更新日期:2011-10-01 00:00:00

  • Synthesis and cytotoxicity of (-)-renieramycin G analogs.

    abstract::(-)-Renieramycin G and fifteen C-22 analogs were prepared employing l-tyrosine as the chiral starting material. These analogs, along with (-)-renieramycin G itself, were evaluated in vitro for cytotoxicity against HCT-8, BEL-7402, A2780, MCF-7, A549, BGC-823, Ketr3, KB, Hela cells. The IC(50) values of most of these a...

    journal_title:Bioorganic & medicinal chemistry letters

    pub_type: 杂志文章

    doi:10.1016/j.bmcl.2011.01.025

    authors: Liu W,Dong W,Liao X,Yan Z,Guan B,Wang N,Liu Z

    更新日期:2011-03-01 00:00:00

  • Venezuelines A-G, new phenoxazine-based alkaloids and aminophenols from Streptomyces venezuelae and the regulation of gene target Nur77.

    abstract::Five new phenoxazine-based alkaloids venezuelines A-E (1-5) and two new aminophenols venezuelines F-G (6-7), as well as three known analogues exfoliazone, chandrananimycin D and carboxyexfoliazone were isolated from the fermentation broth of the marine-derived bacterium Streptomyces venezuelae. The structures of new c...

    journal_title:Bioorganic & medicinal chemistry letters

    pub_type: 杂志文章

    doi:10.1016/j.bmcl.2012.10.096

    authors: Ren J,Liu D,Tian L,Wei Y,Proksch P,Zeng J,Lin W

    更新日期:2013-01-01 00:00:00

  • The discovery of potent antagonists of NPBWR1 (GPR7).

    abstract::The synthesis and evaluation of small molecule antagonists of the G protein-coupled receptor NPBWR1 (GPR7) are reported for the first time. [4-(5-Chloropyridin-2-yl)piperazin-1-yl][(1S,2S,4R)-4-{[(1R)-1-(4-methoxyphenyl)ethyl]amino}-2-(thiophen-3-yl)cyclohexyl]methanone (1) emerged as a hit from a high-throughput scre...

    journal_title:Bioorganic & medicinal chemistry letters

    pub_type: 杂志文章

    doi:10.1016/j.bmcl.2011.11.126

    authors: Anthony Romero F,Hastings NB,Moningka R,Guo Z,Wang M,Di Salvo J,Lei Y,Trusca D,Deng Q,Tong V,Terebetski JL,Ball RG,Ujjainwalla F

    更新日期:2012-01-15 00:00:00

  • Evidence supporting the activity of 2'-C-cyano-2'-deoxy-1-beta-D-arabino-pentafuranosylcytosine as a terminator in enzymatic DNA-chain elongation.

    abstract::To investigate the stability of 2'-C-cyano-2'-deoxy-1-beta-D-arabino-pentafuranosylcytosine 3'-phosphoric acid, its thymidine ester was prepared via the phosphoramidite method using allyl protection for the phosphate function. This ester is stable under acidic conditions but extremely labile under basic conditions, de...

    journal_title:Bioorganic & medicinal chemistry letters

    pub_type: 杂志文章

    doi:10.1016/s0960-894x(98)00459-4

    authors: Hayakawa Y,Kawai R,Otsuki K,Kataoka M,Matsuda A

    更新日期:1998-09-22 00:00:00

  • Synthesis and biological evaluation of novel tricyclic oxazine and oxazepine fused quinazolines. Part 2: Gefitinib analogs.

    abstract::Two series of novel tricyclic oxazine and oxazepine fused quinazolines have been designed and synthesized. The in vitro antitumor effect of the title compounds was screened on N87, A431, H1975, BT474 and Calu-3 cell lines. Compared to gefitinib and erlotinib, compounds 1a-1h were found to demonstrate more potent antit...

    journal_title:Bioorganic & medicinal chemistry letters

    pub_type: 杂志文章

    doi:10.1016/j.bmcl.2016.08.007

    authors: Sun M,Zhao J,Chen X,Zong Z,Han J,Du Y,Sun H,Wang F

    更新日期:2016-10-01 00:00:00

  • Synthesis of novel macrolide derivatives with imidazo[4,5-b]pyridinyl sulfur contained alkyl side chains and their antibacterial activity.

    abstract::In an effort to find new antibiotics, a novel series of 14-membered macrolides with imidazo[4,5-b]pyridinyl sulfur contained alkyl side chains has been synthesized based on commercially available clarithromycin. Chemical transformation of hydroxy group at position C-3 afforded range of ketolides and acylides. Compared...

    journal_title:Bioorganic & medicinal chemistry letters

    pub_type: 杂志文章

    doi:10.1016/j.bmcl.2009.06.023

    authors: Xu P,Liu L,Chen XZ,Li Y,Liu J,Jin ZP,Wang GQ,Lei PS

    更新日期:2009-08-01 00:00:00

  • Design and synthesis of new hydroxyethylamines as inhibitors of D-alanyl-D-lactate ligase (VanA) and D-alanyl-D-alanine ligase (DdlB).

    abstract::The Van enzymes are ATP-dependant ligases responsible for resistance to vancomycin in Staphylococcus aureus and Enteroccoccus species. The de novo molecular design programme SPROUT was used in conjunction with the X-ray crystal structure of Enterococcus faeciumd-alanyl-d-lactate ligase (VanA) to design new putative in...

    journal_title:Bioorganic & medicinal chemistry letters

    pub_type: 杂志文章

    doi:10.1016/j.bmcl.2009.01.034

    authors: Sova M,Cadez G,Turk S,Majce V,Polanc S,Batson S,Lloyd AJ,Roper DI,Fishwick CW,Gobec S

    更新日期:2009-03-01 00:00:00

  • Novel 6,7-diphenyl-2,3,8,8a-tetrahydro-1H-indolizin-5-one analogues as cytotoxic agents.

    abstract::A series of 6,7-diphenyl-2,3,8,8a-tetrahydro-1H-indolizin-5-one analogues were synthesized and evaluated for cytotoxic activity against eight human cancer cell lines. Compounds 18, 21, 28, 29, 30 and 31 showed cytotoxic activity with GI(50) values in the range of 2.1-8.1 microM concentration. Among these, compounds 21...

    journal_title:Bioorganic & medicinal chemistry letters

    pub_type: 杂志文章

    doi:10.1016/s0960-894x(03)00263-4

    authors: Sharma VM,Adi Seshu KV,Vamsee Krishna C,Prasanna P,Chandra Sekhar V,Venkateswarlu A,Rajagopal S,Ajaykumar R,Deevi DS,Rao Mamidi NV,Rajagopalan R

    更新日期:2003-05-19 00:00:00

  • Synthesis and biological characterisation of ester and amide derivatives of fusidic acid as antiplasmodial agents.

    abstract::A series of novel fusidic acid (FA) derivatives was synthesized by replacing the carboxylic acid group with various ester and amide groups and evaluated in vitro for their antiplasmodial activity against the chloroquine-sensitive NF54 and multidrug-resistant K1 strains of the malarial parasite Plasmodium falciparum. M...

    journal_title:Bioorganic & medicinal chemistry letters

    pub_type: 杂志文章

    doi:10.1016/j.bmcl.2016.11.077

    authors: Espinoza-Moraga M,Singh K,Njoroge M,Kaur G,Okombo J,De Kock C,Smith PJ,Wittlin S,Chibale K

    更新日期:2017-02-01 00:00:00

  • Chlorophenylpiperazine analogues as high affinity dopamine transporter ligands.

    abstract::Selective σ2 ligands continue to be an active target for medications to attenuate the effects of psychostimulants. In the course of our studies to determine the optimal substituents in the σ2-selective phenyl piperazines analogues with reduced activity at other neurotransmitter systems, we discovered that 1-(3-chlorop...

    journal_title:Bioorganic & medicinal chemistry letters

    pub_type: 杂志文章

    doi:10.1016/j.bmcl.2013.09.038

    authors: Motel WC,Healy JR,Viard E,Pouw B,Martin K,Matsumoto RR,Coop A

    更新日期:2013-12-15 00:00:00

  • Design and synthesis of 3-substituted benzamide derivatives as Bcr-Abl kinase inhibitors.

    abstract::A series of 3-substituted benzamide derivatives structurally related to STI-571 (imatinib mesylate), a Bcr-Abl tyrosine kinase inhibitor used to treat chronic myeloid leukemia (CML), was prepared and evaluated for antiproliferative activity against the Bcr-Abl-positive leukemia cell line K562. About ten 3-halogenated ...

    journal_title:Bioorganic & medicinal chemistry letters

    pub_type: 杂志文章

    doi:10.1016/j.bmcl.2005.11.042

    authors: Asaki T,Sugiyama Y,Hamamoto T,Higashioka M,Umehara M,Naito H,Niwa T

    更新日期:2006-03-01 00:00:00

  • Discovery of novel 7-membered cyclic amide derivatives that inhibit 11beta-hydroxysteroid dehydrogenase type 1.

    abstract::A series of novel 5-trans-hydroxyadamantan-2-yl-5,6,7,8-tetrahydropyrazolo[4,3-c]azepin-4(1H)-ones that inhibit 11beta-hydroxysteroid dehydrogenase type 1 are described. We discovered these 7-membered cyclic amide derivatives by introducing a distinctive linker through pharmacophore analysis of known ligands included ...

    journal_title:Bioorganic & medicinal chemistry letters

    pub_type: 杂志文章

    doi:10.1016/j.bmcl.2013.01.090

    authors: Udagawa S,Sakami S,Takemura T,Sato M,Arai T,Nitta A,Aoki T,Kawai K,Iwamura T,Okazaki S,Takahashi T,Kaino M

    更新日期:2013-03-15 00:00:00

  • Discovery of a lead series of potent benzodiazepine 5-HT2C receptor agonists with high selectivity in functional and binding assays.

    abstract::A series of potential new 5-HT2 receptor scaffolds based on a simplification of the clinically studied, 5-HT2CR agonist vabicaserin, were designed. An in vivo feeding assay early in our screening process played an instrumental part in the lead identification process, leading us to focus on a 6,5,7-tricyclic scaffold. ...

    journal_title:Bioorganic & medicinal chemistry letters

    pub_type: 杂志文章

    doi:10.1016/j.bmcl.2019.126929

    authors: Ren A,Zhu X,Feichtinger K,Lehman J,Kasem M,Schrader TO,Wong A,Dang H,Le M,Frazer J,Unett DJ,Grottick AJ,Whelan KT,Morgan ME,Sage CR,Semple G

    更新日期:2020-03-01 00:00:00

  • Trace amine-associated receptor 1 (TAAR1) is activated by amiodarone metabolites.

    abstract::Amiodarone (Cordarone, Wyeth-Ayerst Pharmaceuticals) is a clinically available drug used to treat a wide variety of cardiac arrhythmias. We report here the synthesis and characterization of a panel of potential amiodarone metabolites that have significant structural similarity to thyroid hormone and its metabolites th...

    journal_title:Bioorganic & medicinal chemistry letters

    pub_type: 杂志文章

    doi:10.1016/j.bmcl.2008.08.013

    authors: Snead AN,Miyakawa M,Tan ES,Scanlan TS

    更新日期:2008-11-15 00:00:00

  • Synthesis and antibacterial activity of C2-fluoro, C6-carbamate ketolides, and their C9-oximes.

    abstract::Novel C6-carbamate ketolides with C2-fluorination and C9-oximation have been synthesized. The best compounds in this series displayed MIC values of 0.03-0.12 microg/mL against streptococci containing erm and mef resistance determinants and 2-4 microg/mL against Haemophilus influenzae. Several compounds also showed mea...

    journal_title:Bioorganic & medicinal chemistry letters

    pub_type: 杂志文章

    doi:10.1016/j.bmcl.2004.12.067

    authors: Xu X,Henninger T,Abbanat D,Bush K,Foleno B,Hilliard J,Macielag M

    更新日期:2005-02-15 00:00:00

  • Synthesis, iron binding and antimicrobial properties of hexadentate 3-hydroxypyridinones-terminated dendrimers.

    abstract::Macromolecular chelators have potential applications in the medical area, for instance, in treatment of iron overload-related disorders and in the treatment of external infections. In this investigation, several novel iron(III)-selective hydroxypyridinone hexadentate-terminated first and second generation dendrimeric ...

    journal_title:Bioorganic & medicinal chemistry letters

    pub_type: 杂志文章

    doi:10.1016/j.bmcl.2018.05.058

    authors: Zhou T,Chen K,Kong LM,Liu MS,Ma YM,Xie YY,Hider RC

    更新日期:2018-08-01 00:00:00

  • Adamantyl N-benzylbenzamide: new series of depigmentation agents with tyrosinase inhibitory activity.

    abstract::A new series of polyhydroxylated N-benzylbenzamide derivatives containing an adamantyl moiety has been synthesized, and the depigmenting and tyrosinase inhibitory activities of the molecules were evaluated. The lipophilic character of the adamantyl moiety appeared to confer greater depigmentation power on the benzamid...

    journal_title:Bioorganic & medicinal chemistry letters

    pub_type: 杂志文章

    doi:10.1016/j.bmcl.2011.12.144

    authors: Baek HS,Hong YD,Lee CS,Rho HS,Shin SS,Park YH,Joo YH

    更新日期:2012-03-01 00:00:00

  • Synthesis of a dansyl-labeled inhibitor of 17β-hydroxysteroid dehydrogenase type 3 for optical imaging.

    abstract::The steroidogenic enzyme 17β-hydroxysteroid dehydrogenase type 3 (17β-HSD3) is a therapeutic target in the management of androgen-sensitive diseases such as prostate cancer and benign prostate hyperplasia. In this Letter, we designed and synthesized the first fluorescent inhibitor of this enzyme by combining a fluorog...

    journal_title:Bioorganic & medicinal chemistry letters

    pub_type: 信件

    doi:10.1016/j.bmcl.2016.03.069

    authors: Kenmogne LC,Maltais R,Poirier D

    更新日期:2016-05-01 00:00:00

  • Antibacterial activity of quinolone-macrocycle conjugates.

    abstract::Novel quinolone-macrocycle conjugates displayed submicromolar antibacterial activity against Escherichia coli and Staphylococcus aureus bacterial strains. An analogous open-chain structure was not active at 100 microM against the same pathogenic strains. ...

    journal_title:Bioorganic & medicinal chemistry letters

    pub_type: 杂志文章

    doi:10.1016/s0960-894x(03)00285-3

    authors: Jefferson EA,Swayze EE,Osgood SA,Miyaji A,Risen LM,Blyn LB

    更新日期:2003-05-19 00:00:00

  • Identification and characterization of pyrrolidine diastereoisomers as potent functional agonists and antagonists of the human melanocortin-4 receptor.

    abstract::A series of trans-4-phenylpyrrolidine-3-carboxamides were synthesized and characterized as potent ligands of the human melanocortin-4 receptor. Interestingly, a pair of diastereoisomers 13b displayed potent functional agonist and antagonist activity, respectively. Thus, the 3S,4R-pyrrolidine 13b-1 possessed a Ki of 1....

    journal_title:Bioorganic & medicinal chemistry letters

    pub_type: 杂志文章

    doi:10.1016/j.bmcl.2007.10.115

    authors: Chen C,Jiang W,Tran JA,Tucci FC,Fleck BA,Markison S,Wen J,Madan A,Hoare SR,Foster AC,Marinkovic D,Chen CW,Arellano M,Saunders J

    更新日期:2008-01-01 00:00:00