Design and synthesis of a tetrahydropyran-based inhibitor of mammalian ribonucleotide reductase.

abstract：:Lipase-catalyzed acylation of Guanfu alcohol-amine (GFAA) with vinyl acetate (VA) was performed in non-aqueous system for the preparation of Guanfu base G (GFG), a plant-originated alkaloid with significant antiarrhythmic activity. Among the eight lipases from different origins, Novozym 435 was found to be the best bi...

journal_title：Bioorganic & medicinal chemistry letters

authors： Xia Y,Liu JH,Liu JH,Yu BY

更新日期：2012-05-01 00:00:00

abstract：:Bipiperidine amide 1 has been identified as a CC chemokine receptor 3 (CCR3) antagonist. Optimization of its structure-activity relationship has resulted in the identification of cis (R,R)-4-[(3,4-dichlorophenyl)methyl]-3-hydroxymethyl-1'(6-quinolinylcarbonyl)-1,4'-bipiperidine 14n, which exhibits potent receptor affi...

journal_title：Bioorganic & medicinal chemistry letters

authors： Ting PC,Lee JF,Wu J,Umland SP,Aslanian R,Cao J,Dong Y,Garlisi CG,Gilbert EJ,Huang Y,Jakway J,Kelly J,Liu Z,McCombie S,Shah H,Tian F,Wan Y,Shih NY

更新日期：2005-03-01 00:00:00

abstract：:A large database of chemical structures was screened for potential inhibitors of beta-secretase was carried out using in silico multi-filter techniques. Substructure screening, computer-aided ligand docking, binding free energy calculations, and partial interaction energy analyses were performed successively to identi...

journal_title：Bioorganic & medicinal chemistry letters

authors： Fujimoto T,Matsushita Y,Gouda H,Yamaotsu N,Hirono S

更新日期：2008-05-01 00:00:00

abstract：:Identification of a number of highly potent M2 receptor antagonists with >100-fold selectivity against the M1 and M3 receptor subtypes is described. In the rat microdialysis assay, this series of compounds showed pronounced enhancement of brain acetylcholine release after oral administration. ...

journal_title：Bioorganic & medicinal chemistry letters

authors： Wang Y,Chackalamannil S,Hu Z,Clader JW,Greenlee W,Billard W,Binch H,Crosby G,Ruperto V,Duffy RA,McQuade R,Lachowicz JE

更新日期：2000-10-16 00:00:00

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

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

更新日期：2008-11-15 00:00:00

abstract：:Novel dihydroalkoxybenzyloxopyrimidine (S-DABO) derivatives targeting the non-nucleoside inhibitor (NNI) binding site of human immunodeficiency virus (HIV) reverse transcriptase (RT) have been synthesized using a novel computer model for the NNI binding pocket and tested for their RT inhibitory activity in cell-free a...

journal_title：Bioorganic & medicinal chemistry letters

authors： Vig R,Mao C,Venkatachalam TK,Tuel-Ahlgren L,Sudbeck EA,Uckun FM

更新日期：1998-06-16 00:00:00

abstract：:Out of 400 virtually designed imidazoline N-oxides, five cyclic nitrones were selected on the basis of PASS prediction as potent nootropics and were evaluated for their biological activities in albino mice. The selected N-alkyl and aryl-substituted nitrones were found to be excellent nootropics. A series of lead compo...

journal_title：Bioorganic & medicinal chemistry letters

authors： Marwaha A,Goel RK,Mahajan MP

更新日期：2007-09-15 00:00:00

abstract：:d-Labeled N-alkylmaleimides have been prepared for specific modification of the terminal SH groups of cysteine residues in proteins or peptides. These reagents are useful tools for quantitative analysis of peptides by stable isotope differential mass spectrometry. ...

journal_title：Bioorganic & medicinal chemistry letters

authors： Niwayama S,Kurono S,Matsumoto H

更新日期：2001-09-03 00:00:00

abstract：:Exploration of the SAR around selective NK2 antagonists, SR48968 and ZD7944, led to the discovery that naphth-1-amide analogues provide potent dual NK1 and NK2 antagonists. ZD6021 inhibited binding of [3H]-NKA or [3H]-SP to human NK1 and NK2 receptors, with high-affinity (K(i)=0.12 and 0.62nM, respectively). In functi...

journal_title：Bioorganic & medicinal chemistry letters

authors： Bernstein PR,Aharony D,Albert JS,Andisik D,Barthlow HG,Bialecki R,Davenport T,Dedinas RF,Dembofsky BT,Koether G,Kosmider BJ,Kirkland K,Ohnmacht CJ,Potts W,Rumsey WL,Shen L,Shenvi A,Sherwood S,Stollman D,Russell K

更新日期：2001-10-22 00:00:00

abstract：:In an effort to find potential anxiolytic and/or antipsychotic agents with selective 5-HT(2C) affinity a series of new pyrimidine derivatives was prepared and the binding affinities for 5-HT(2A) and 5-HT(2C) receptors were determined. ...

journal_title：Bioorganic & medicinal chemistry letters

authors： Bózsing D,Simonek I,Simig G,Jakóczi I,Gacsályi I,Lévay G,Tihanyi K,Schmidt E

更新日期：2002-11-04 00:00:00

abstract：:The synthesis of 22 2-aryl-1H-indoles, including 12 new compounds, has been achieved via Pd- or Rh-mediated methodologies, or selective electrophilic substitution. All three methods were based on elaborations from simple indole precursors. SAR studies on these indoles and 2-phenyl-1H-indole in Staphylococcus aureus as...

journal_title：Bioorganic & medicinal chemistry letters

authors： Ambrus JI,Kelso MJ,Bremner JB,Ball AR,Casadei G,Lewis K

更新日期：2008-08-01 00:00:00

abstract：:Next generation NNRTIs are sought which possess both broad spectrum antiviral activity against key mutant strains and a high genetic barrier to the selection of new mutant viral strains. Pyridones were evaluated as an acyclic conformational constraint to replace the aryl ether core of MK-4965 (1) and the more rigid in...

journal_title：Bioorganic & medicinal chemistry letters

authors： Gomez R,Jolly S,Williams T,Tucker T,Tynebor R,Vacca J,McGaughey G,Lai MT,Felock P,Munshi V,DeStefano D,Touch S,Miller M,Yan Y,Sanchez R,Liang Y,Paton B,Wan BL,Anthony N

更新日期：2011-12-15 00:00:00

abstract：:Bioactivity-guided fractionation of the CHCl3 extract from hooks of Uncaria rhynchophylla led to the isolation of two triterpene esters, namely uncarinic acids A (1) and B (2). Their structures were established by spectroscopic and chemical methods. These compounds inhibited phospholipase Cgamma1 with IC50 values of 3...

journal_title：Bioorganic & medicinal chemistry letters

authors： Lee JS,Yang MY,Yeo H,Kim J,Lee HS,Ahn JS

更新日期：1999-05-17 00:00:00

abstract：:Four new lanostane triterpenes, butyl lucidenate P (1), butyl lucidenate D(2) (2), butyl lucidenate E(2) (3) and butyl lucidenate Q (4) along with 11 known compounds (5-15) were isolated from the fruiting bodies of Ganoderma lucidum. Their chemical structures were established mainly by 1D and 2D NMR techniques and mas...

journal_title：Bioorganic & medicinal chemistry letters

authors： Tung NT,Cuong TD,Hung TM,Lee JH,Woo MH,Choi JS,Kim J,Ryu SH,Min BS

更新日期：2013-03-01 00:00:00

abstract：:To obtain modulators for reducing mitochondrial damage by the inhibition of Aβ oligomer formation, 2-phenylbenzofuran derivatives were designed and prepared. Their inhibitory activity against Aβ fibril formation was screened using ThT fluorescence assay, and the effect of derivatives on mitochondrial function was eval...

journal_title：Bioorganic & medicinal chemistry letters

authors： Lee YS,Kim HY,Youn HM,Seo JH,Kim Y,Shin KJ

更新日期：2013-11-01 00:00:00

abstract：:Novel bendazac analogues and their salts have been designed and prepared. The resulting compounds (13c-d, 15c, 17c) showed very good aqueous solubility (>100 mg/mL). An in vitro assay showed that most of the resulting compounds had potent protective activity against the oxidative damage. Particularly, compound 13d was...

journal_title：Bioorganic & medicinal chemistry letters

authors： Shen H,Gou S,Shen J,Zhu Y,Zhang Y,Chen X

更新日期：2010-04-01 00:00:00

abstract：:We have developed a new series of progesterone receptor modulators based upon the 4-aryl-phenylsulfonamide. Initial work in the series afforded potent compounds with good properties, however an advanced intermediate proved to be genotoxic in a non-GLP Ames assay following metabolic activation. We subsequently solved t...

journal_title：Bioorganic & medicinal chemistry letters

authors： McComas C,Cohen J,Huselton C,Marella M,Melenski E,Mugford C,Slayden O,Winneker R,Wrobel J,Yudt MR,Fensome A

更新日期：2012-12-01 00:00:00

abstract：:Reaction of 7-amino-9-ethylguaninium chloride with lead(IV) acetate (LTA) in MeOH yielded 8-aza-9-ethylguanine. Similarly, the reaction of 1-amino-3-methylbenzimidazolium chloride or its substituted derivatives (6-methyl, 5,6-dimethyl and 5-nitro) with LTA gave the corresponding 1-methyl-1H-benzotriazole (or 1-methyl-...

journal_title：Bioorganic & medicinal chemistry letters

authors： Kaiya T,Aoyama S,Kohda K

更新日期：1999-04-05 00:00:00

abstract：:In the catalytic core of 10-23 DNAzyme, its five adenine residues are moderate conservative, but with highly conserved functional groups like 6-amino group and 7-nitrogen atom. It is this critical conservation that these two groups could be modified for better contribution. With 2'-deoxyadenosine analogues, several fu...

journal_title：Bioorganic & medicinal chemistry letters

authors： Zhu J,Li Z,Wang Q,Liu Y,He J

更新日期：2016-09-15 00:00:00

abstract：:Aberrant expansion of GGGGCC (G4C2) hexanucleotide repeat (HNR) in the first intron of C9ORF72 has been found in frontotemporal dementia and amyotrophic lateral sclerosis (FTD/ALD). The non-canonical DNA structures of the expanded repeats are causative to repeat instability leading to contraction and expansion. We dem...

journal_title：Bioorganic & medicinal chemistry letters

authors： Shibata T,Murakami E,Nakatani K

更新日期：2018-08-01 00:00:00

abstract：:A novel series of non-nucleoside HCV NS5B polymerase inhibitors was prepared from a (2Z)-2-benzoylamino-3-(4-phenoxy-phenyl)-acrylic acid template. Solution and solid phase analog synthesis focused on the northern region of the template combined with structure based design led to the discovery of several potent and or...

journal_title：Bioorganic & medicinal chemistry letters

authors： Pfefferkorn JA,Nugent R,Gross RJ,Greene M,Mitchell MA,Reding MT,Funk LA,Anderson R,Wells PA,Shelly JA,Anstadt R,Finzel BC,Harris MS,Kilkuskie RE,Kopta LA,Schwende FJ

更新日期：2005-06-02 00:00:00

abstract：:β-Sitosterol is the most abundant plant sterol in the human diet. It is also the major component of several traditional medicines, including saw palmetto and devil's claw. Although β-sitosterol is effective against enlarged prostate in human clinical trials and has anti-cancer and anti-inflammatory activities, the mec...

journal_title：Bioorganic & medicinal chemistry letters

authors： Lomenick B,Shi H,Huang J,Chen C

更新日期：2015-11-01 00:00:00

abstract：:In an effort to identify a potential back-up to apixaban (Eliquis®), we explored a series of diversified P4 moieties. Several analogs with substituted gem-dimethyl moieties replacing the terminal lactam of apixaban were identified which demonstrated potent FXa binding affinity (FXa Ki), good human plasma anticoagulant...

journal_title：Bioorganic & medicinal chemistry letters

authors： Orwat MJ,Qiao JX,He K,Rendina AR,Luettgen JM,Rossi KA,Xin B,Knabb RM,Wexler RR,Lam PY,Pinto DJ

更新日期：2014-08-01 00:00:00

abstract：:A series of 1-aryloxy-3-piperidinylpropan-2-ols possessing potent dual 5-HT1A receptor antagonism and serotonin reuptake inhibition was discovered. 1-(1H-Indol-4-yloxy)-3-(4-benzo[b]thiophen-2-ylpiperidinyl)propan-2-ols exhibited selective and high affinities at the 5-HT1A receptor and serotonin reuptake site in vitro...

journal_title：Bioorganic & medicinal chemistry letters

authors： Takeuchi K,Kohn TJ,Honigschmidt NA,Rocco VP,Spinazze PG,Hemrick-Luecke SK,Thompson LK,Evans DC,Rasmussen K,Koger D,Lodge D,Martin LJ,Shaw J,Threlkeld PG,Wong DT

更新日期：2006-05-01 00:00:00

abstract：:Blocking the interaction between phosphotyrosine (pTyr)-containing activated receptors and the Src homology 2 (SH2) domain of the growth factor receptor-bound protein 2 (Grb 2) is considered to be an effective and non-cytotoxic strategy to develop new anti-proliferate agents due to its potential to shut down the Ras a...

journal_title：Bioorganic & medicinal chemistry letters

authors： Jiang S,Liao C,Bindu L,Yin B,Worthy KW,Fisher RJ,Burke TR Jr,Nicklaus MC,Roller PP

更新日期：2009-05-15 00:00:00

abstract：:Protein tyrosine phosphatase 1B (PTP1B) has been proposed to be an ideal target for treatment of type II diabetes and obesity. However, no druggable PTP1B inhibitor has been established and there is still an urgent demand for the development of structurally novel PTPIB inhibitor. Herein, we reported core-structurally ...

journal_title：Bioorganic & medicinal chemistry letters

authors： Dong S,Lei Y,Jia S,Gao L,Li J,Zhu T,Liu S,Hu W

更新日期：2017-02-15 00:00:00

abstract：:4,7-Dichloro-1-benzothien-2-yl sulfonylaminomethyl boronic acid (DSABA, Compound I) was discovered as the first boronic acid-based class D beta-lactamase inhibitor. It exhibited an IC(50) of 5.6 microM against OXA-40. The compound also inhibited class A and C beta-lactamases with sub to low microM IC(50), and synergiz...

journal_title：Bioorganic & medicinal chemistry letters

authors： Tan Q,Ogawa AM,Painter RE,Park YW,Young K,DiNinno FP

更新日期：2010-04-15 00:00:00

abstract：:In an effort to discover oral inverse agonists of RORγt to treat inflammatory diseases, a new 2,6-difluorobenzyl ether series of cyclopentyl sulfones were found to be surprisingly more potent than the corresponding alcohol derivatives. When combined with a more optimized phenyl ((R)-3-phenylpyrrolidin-3-yl)sulfone tem...

journal_title：Bioorganic & medicinal chemistry letters

authors： Duan JJ,Jiang B,Lu Z,Stachura S,Weigelt CA,Sack JS,Khan J,Ruzanov M,Wu DR,Yarde M,Shen DR,Zhao Q,Salter-Cid LM,Carter PH,Murali Dhar TG

更新日期：2020-10-01 00:00:00

abstract：:A series of optically pure phenyl-and non-phenyl-substituted 1-[2-[bis(4-fluorophenyl)methoxy]ethyl]-4-(2-hydroxypropyl)piperazines was synthesized and their binding affinity for dopamine transporter (DAT) was investigated. The analogues with a hydroxyl group in the S configuration were more selective for the DAT over...

journal_title：Bioorganic & medicinal chemistry letters

authors： Hsin LW,Prisinzano T,Wilkerson CR,Dersch CM,Horel R,Jacobson AE,Rothman RB,Rice KC

更新日期：2003-02-10 00:00:00

abstract：:A series of methoxycarbonyl group modified nidulalin A analogs were synthesized to improve stability against esterases. The amide derivatives showed cytotoxic activity along with inhibitory activity against DNA topoisomerase II. Among the analogs, amide 9a exhibited antitumor activity in Colon 26 murine tumor model. ...

journal_title：Bioorganic & medicinal chemistry letters

authors： Sato S,Suga Y,Yoshimura T,Nakagawa R,Tsuji T,Umemura K,Andoh T

更新日期：1999-09-20 00:00:00