DNA triplex structures are stabilized by the incorporation of 3'-endo blocked pyrimidine nucleosides in the Hoogsteen strand.

abstract：:Gram positive (Bacillus cereus, B. subtilis), Gram negative (Pseudomonas aeruginosa, Escherichia coli) bacteria, and Candida albicans as a representative of fungi were used for screening the in vitro antimicrobial activity of diarylamines in the 2,3,5-trimethylbenzo[b]thiophene series bearing different substituents, s...

journal_title：Bioorganic & medicinal chemistry letters

authors： Ferreira IC,Calhelha RC,Estevinho LM,Queiroz MJ

更新日期：2004-12-06 00:00:00

abstract：:The SPOT technology can fulfill most requirements for highly parallel, multiple peptide synthesis of soluble peptides within the upper microgram range. Here, we report on an improved method using hydroxymethylphenoxyacetic acid (HMPA) for 19 amino acids and 4-(4-hydroxymethyl-3-methoxyphenoxy)-butyric acid (HMPB) for ...

journal_title：Bioorganic & medicinal chemistry letters

authors： Ay B,Landgraf K,Streitz M,Fuhrmann S,Volkmer R,Boisguerin P

更新日期：2008-07-15 00:00:00

abstract：:Synthesis of 13'[(cholest-5-en)-3beta-yloxyethoxycarbamoyl]-chlorin e6 starting from methylpheophorbide and 3beta(2-hydroxy)-ethoxycholest-5-ene is presented, as well as the preparation of related copper complex. Both conjugates obtained may be simply incorporated in phosphatidyl choline vesicles. ...

journal_title：Bioorganic & medicinal chemistry letters

authors： Nikolaeva IA,Misharin AY,Ponomarev GV,Timofeev VP,Tkachev YV

更新日期：2010-05-01 00:00:00

abstract：:A novel series of amide derivatives of lomefloxacin were synthesized and evaluated for their topoisomerase I and II inhibitory activity as well as cytotoxicity against a panel of five human cancer cell lines. Of the compounds prepared compounds 9d and 9g exhibited strong inhibition against topoisomerase II at 100μM. I...

journal_title：Bioorganic & medicinal chemistry letters

authors： Zhou Y,Xu X,Sun Y,Wang H,Sun H,You Q

更新日期：2013-05-15 00:00:00

abstract：:A convenient and efficient palladium-catalysed retro-ene-assisted method has been developed to prepare a series of 5-substituted-6-phenyl-3(2H)-pyridazinones as potential antiplatelet drugs. The most active compounds were those that contain a 3-phenyl-3-oxo-propenyl fragment or a phenylthio group at position 5 of the ...

journal_title：Bioorganic & medicinal chemistry letters

authors： Coelho A,Sotelo E,Fraiz N,Yáñez M,Laguna R,Cano E,Raviña E

更新日期：2004-01-19 00:00:00

abstract：:Covalent enzyme inhibitors constitute a highly important group of biologically active compounds, with numerous drugs available on the market. Although the discovery of inhibitors of urease, a urea hydrolyzing enzyme crucial for the survival of some human pathogens, is a field of medicinal chemistry that has grown in r...

journal_title：Bioorganic & medicinal chemistry letters

authors： Macegoniuk K,Kowalczyk R,Rudzińska A,Psurski M,Wietrzyk J,Berlicki Ł

更新日期：2017-03-15 00:00:00

abstract：:The structure-activity relationship and the synthesis of novel N-[(3S)-pyrrolidin-3-yl]benzamides as dual serotonin and noradrenaline monoamine reuptake inhibitors (SNRI) is described. Preferred compound 9 aka PF-184,298 is a potent SNRI with good selectivity over dopamine reuptake inhibition (DRI), good in vitro meta...

journal_title：Bioorganic & medicinal chemistry letters

authors： Wakenhut F,Allan GA,Fish PV,Fray MJ,Harrison AC,McCoy R,Phillips SC,Ryckmans T,Stobie A,Westbrook D,Westbrook SL,Whitlock GA

更新日期：2009-09-01 00:00:00

abstract：:Several substituted quinolin-4-amines and heteroaromatic analogs were synthesized and evaluated for interaction with triplex polydA.2polydT and duplex polydA.polydT by using UV-thermal melting experiments. Excellent triple-helix DNA ligands with high affinity toward T.A.T triplets and triple/duplex selectivity were de...

journal_title：Bioorganic & medicinal chemistry letters

authors： Strekowski L,Hojjat M,Wolinska E,Parker AN,Paliakov E,Gorecki T,Tanious FA,Wilson WD

更新日期：2005-02-15 00:00:00

abstract：:In the course of ongoing research on protein tyrosine phosphatase 1B (PTP1B) inhibitory compounds from Antarctic lichens, four new diterpene furanoids, hueafuranoids A-D (1-4) have been isolated from the MeOH extract of Antarctic lichen Huea sp. by various chromatographic methods. The structures of these compounds wer...

journal_title：Bioorganic & medicinal chemistry letters

authors： Cui Y,Yim JH,Lee DS,Kim YC,Oh H

更新日期：2012-12-15 00:00:00

abstract：:The synthesis of racemic tetrahydrocurcumin- (THC-), tetrahydrodemethoxycurcumin- (THDC-) and tetrahydrobisdemethoxycurcumin- (THBDC-) dihydropyrimidinone (DHPM) analogues was achieved by utilizing the multi-component Biginelli reaction in the presence of copper sulphate as a catalyst. The evaluation of acetylcholines...

journal_title：Bioorganic & medicinal chemistry letters

authors： Arunkhamkaew S,Athipornchai A,Apiratikul N,Suksamrarn A,Ajavakom V

更新日期：2013-05-15 00:00:00

abstract：:Non peptide products have been found to show nanomolar binding and functional affinities at the human tachykinin NK-2 receptor. The new antagonists do not possess stereogenic centers and their thermal behaviour in solution is featured by a peculiar set of conformational stereoisomers. A macroscopic viewpoint is prefer...

journal_title：Bioorganic & medicinal chemistry letters

authors： Altamura M,Canfarini F,Catalioto RM,Guidi A,Pasqui F,Renzetti AR,Triolo A,Maggi CA

更新日期：2002-10-21 00:00:00

abstract：:5-Aminolaevulinic acid (ALA) prodrugs have been widely used in photodynamic therapy (PDT) as precursors to the natural photosensitizer, protoporphyrin IX (PpIX). The main disadvantage of this therapy is that ALA is poorly absorbed by cells due to its high hydrophilicity. In order to improve the therapeutical effect an...

journal_title：Bioorganic & medicinal chemistry letters

authors： Zhu CF,Battah S,Kong X,Reeder BJ,Hider RC,Zhou T

更新日期：2015-02-01 00:00:00

abstract：:Structure-activity relationships (SAR) of fused 1,2,4-triazolo[1,5-c ]pyrimidine were performed. Various substituents were introduced into the heterocyclic ring to improve the potency of adenosine A(3) receptor binding affinity and A(3)-selectivity against other subtypes. Potent and selective A(3) receptor antagonists...

journal_title：Bioorganic & medicinal chemistry letters

authors： Okamura T,Kurogi Y,Hashimoto K,Sato S,Nishikawa H,Kiryu K,Nagao Y

更新日期：2004-07-16 00:00:00

abstract：:A series of new voltage-gated sodium channel blockers were prepared based on the screening lead succinic diamide BPBTS. Replacement of the succinimide linker with the more rigid cyclic 1,2-trans-diamide linker was well tolerated. N-Methylation on the biphenylsulfonamide side of the amide moiety significantly reduced t...

journal_title：Bioorganic & medicinal chemistry letters

authors： Shao PP,Ok D,Fisher MH,Garcia ML,Kaczorowski GJ,Li C,Lyons KA,Martin WJ,Meinke PT,Priest BT,Smith MM,Wyvratt MJ,Ye F,Parsons WH

更新日期：2005-04-01 00:00:00

abstract：:Prototypical thrombin inhibitors were synthesized based on a trisubstituted phenol as a core motif. A naphthylsulfonamide analogue showed excellent antithrombin activity. An X-ray co-crystal structure showed the expected interactions. ...

journal_title：Bioorganic & medicinal chemistry letters

authors： Hanessian S,Therrien E,van Otterlo WA,Bayrakdarian M,Nilsson I,Fjellström O,Xue Y

更新日期：2006-02-15 00:00:00

abstract：:A reliable and efficient synthesis of a Ni(II) salen complex useful in probing nucleic acid structure is described and illustrates a general approach for constructing cis diamines suitable for assembly into N2O2 Schiff base complexes. Two equivalents of an aryllithium reacted with 1,4-dimethylpiperazine-2,3-dione to f...

journal_title：Bioorganic & medicinal chemistry letters

authors： Shearer JM,Rokita SE

更新日期：1999-02-08 00:00:00

abstract：:The synthesis of a series of novel 4-substituted 2,3,6,7-tetrahydrobenzo [1,2-b;4,5-b']difuran-1H-imidazolium salts is presented. The biological properties of the compounds were evaluated in vitro against a panel of human tumor cell lines. Results suggest that the 5,6-dimethyl-benzimidazole or 2-methyl-benzimidazole r...

journal_title：Bioorganic & medicinal chemistry letters

authors： Zhang CB,Liu Y,Liu ZF,Duan SZ,Li MY,Chen W,Li Y,Zhang HB,Yang XD

更新日期：2017-04-15 00:00:00

abstract：:Chemoselective purification technologies have seen great success in biomolecule isolation, with a classic example being the genetically-encoded His tag utilized to enrich desired proteins from a crude lysate. We sought to translate this purification tactic into a powerful tool for the isolation of natural products and...

journal_title：Bioorganic & medicinal chemistry letters

authors： Trader DJ,Carlson EE

更新日期：2015-11-01 00:00:00

abstract：:Six diam(m)ineplatinum(II) complexes with 2,2-bis(hydroxymethyl)malonate as the leaving group were synthesized and characterized by elemental analysis, FAB-MS, FT-IR, (1)H and (13)C NMR along with a single crystal X-ray diffraction for a representative compound. All the complexes were evaluated for the cytotoxicity ag...

journal_title：Bioorganic & medicinal chemistry letters

authors： Xing Y,Lou L,Chen X,Ye Q,Xu Y,Xie C,Jiang J,Liu W

更新日期：2012-03-15 00:00:00

abstract：:A series of aminobenzimidazole-substituted pyrimidines were synthesized and evaluated for biochemical activity against CDK1. A high-speed parallel synthesis approach enabled the identification of a potent lead series having improved potency in the CDK1 assay (IC(50)<10nM). Cell cycle analysis showed that the compounds...

journal_title：Bioorganic & medicinal chemistry letters

authors： Verma S,Nagarathnam D,Shao J,Zhang L,Zhao J,Wang Y,Li T,Mull E,Enyedy I,Wang C,Zhu Q,Altieri M,Jordan J,Dang TT,Reddy S

更新日期：2005-04-15 00:00:00

abstract：:Type-2 diabetes (T2D) is a complex metabolic disease characterized by insulin resistance in the liver and peripheral tissues accompanied by a deficiency in pancreatic beta-cells. Since their discovery, three subtypes of peroxisome proliferator activated receptors have been identified, namely PPARalpha, PPARgamma and P...

journal_title：Bioorganic & medicinal chemistry letters

authors： Parmenon C,Guillard J,Caignard DH,Hennuyer N,Staels B,Audinot-Bouchez V,Boutin JA,Dacquet C,Ktorza A,Viaud-Massuard MC

更新日期：2009-05-15 00:00:00

abstract：:Based on a screening lead from a yeast-based assay to identify Src family kinase inhibitors, a series of 4-anilino-7-thienyl-3-quinolinecarbonitriles was prepared. When the thiophene ring was substituted with a water-solubilizing group in a 2,5-, 3,5- or 2,4-pattern, potent inhibition of Src kinase activity was observ...

journal_title：Bioorganic & medicinal chemistry letters

authors： Boschelli DH,Wang DY,Ye F,Yamashita A,Zhang N,Powell D,Weber J,Boschelli F

更新日期：2002-08-05 00:00:00

abstract：:Distamycin and nitrogen mustard conjugates, in which the nitrogen mustard unit was coupled to the C-terminus of the pyrrole, were synthesized. The switching of the nitrogen mustard unit from the N-terminus to the C-terminus did not compromise the compound's cytotoxicity. Compound 3, bearing three pyrrole units, was hi...

journal_title：Bioorganic & medicinal chemistry letters

authors： Wang Y,Wright SC,Larrick JW

更新日期：2003-02-10 00:00:00

abstract：:Two cathepsin B inhibitors were isolated from the culture supernatant of a marine Pseudomonas sp. PB01 (GenBank Accession No. EU126129). Their structures were elucidated by spectroscopic analyses as dibutyl phthalate and di-(2-ethylhexyl) phthalate. Both dibutyl phthalate and di-(2-ethylhexyl) phthalate showed dose-de...

journal_title：Bioorganic & medicinal chemistry letters

authors： Hoang VL,Li Y,Kim SK

更新日期：2008-03-15 00:00:00

abstract：:New heteroarylcarboxamide head groups substituted with two aromatic rings analogs of thieno[3,2-b]pyridine-based kinase inhibitor LCRF-0004 were designed and synthesized. Potent inhibitors of RON tyrosine kinase with various level of selectivity for c-Met RTK were obtained. ...

journal_title：Bioorganic & medicinal chemistry letters

authors： Raeppel F,Raeppel SL,Therrien E

更新日期：2015-09-15 00:00:00

abstract：:A new family of bioactive bromotyrosine derivatives, termed mololipids, was recently isolated from a Hawaiian sponge, but could not be resolved into individual components by chromatography. To complete their structural characterization and better understand structure-activity relationships, the first pure samples of d...

journal_title：Bioorganic & medicinal chemistry letters

authors： Schoenfeld RC,Lumb JP,Fantini J,Ganem B

更新日期：2000-12-04 00:00:00

abstract：:Analogues of the naturally occurring cyclic hydroxamate dealanylalahopcin, which is an inhibitor of procollagen prolyl-4-hydroxylase, were synthesised and shown to be inhibitors of the human hypoxia-inducible factor prolyl hydroxylases. ...

journal_title：Bioorganic & medicinal chemistry letters

authors： Schlemminger I,Mole DR,McNeill LA,Dhanda A,Hewitson KS,Tian YM,Ratcliffe PJ,Pugh CW,Schofield CJ

更新日期：2003-04-17 00:00:00

abstract：:The first time synthesis of 7alpha- and 11beta-nitrile estradiol is described. Reaction of 7alpha-cyano-19-nortestosterone with copper(II)bromide in acetonitrile at room temperature results in aromatization of the A-ring. Treatment of 11beta-cyano-19-nortestosterone-17-one under similar condition does not induce A-rin...

journal_title：Bioorganic & medicinal chemistry letters

authors： Ali H,van Lier JE

更新日期：2002-10-21 00:00:00

abstract：:The synthesis and pharmacological activity of novel nociceptin/orphanin FQ (N/OFQ) analogues modified in the Phe(1)-Gly(2) peptide bond are reported. The aim of the present work was to elucidate the importance of this peptide bond for the N/OFQ receptor (NOP) interaction. Our study indicates that the first peptide bon...

journal_title：Bioorganic & medicinal chemistry letters

authors： Guerrini R,Rizzi D,Zucchini M,Tomatis R,Regoli D,Calo' G,Salvadori S

更新日期：2003-02-10 00:00:00

abstract：:The selectivity and the binding affinity of previously reported carborane-containing ligands 2 and 3 toward ERβ remains to be optimized. To improve their biological profiles, a series of iodinated carboranyl phenol derivatives (4-6) were designed and synthesized as prospective ERβ-selective ligands with high affinity....

journal_title：Bioorganic & medicinal chemistry letters

authors： Ohta K,Ogawa T,Endo Y

更新日期：2017-09-01 00:00:00