5-Propynylamino alpha-deoxyuridine promotes DNA duplex stabilization of anionic and neutral but not cationic alpha-oligonucleotides.

abstract：:Lactimidomycin (LTM, 1), iso-migrastatin (iso-MGS, 2) and migrastatin (MGS, 3) are macrolide antitumor antibiotics differing in macrolide ring size but all bearing a glutarimide side chain. To further develop these natural products and related analogs as drug candidates we have produced and evaluated the biological ac...

journal_title：Bioorganic & medicinal chemistry letters

authors： Ju J,Rajski SR,Lim SK,Seo JW,Peters NR,Hoffmann FM,Shen B

更新日期：2008-11-15 00:00:00

abstract：:The affinity of a series of 2', 3'- and 5-modified thymidine analogues for Mycobacterium tuberculosis thymidine monophosphate kinase (TMPKmt) was evaluated. The affinities of several non-phosphorylated analogues are in the same order of magnitude as those of their phosphorylated congeners. In view of drug delivery pro...

journal_title：Bioorganic & medicinal chemistry letters

authors： Vanheusden V,Van Rompaey P,Munier-Lehmann H,Pochet S,Herdewijn P,Van Calenbergh S

更新日期：2003-09-15 00:00:00

abstract：:A novel series of thiazolone-acylsulfonamides were designed as HCV NS5B polymerase allosteric inhibitors. The structure based drug designs (SBDD) were guided by docking results that revealed the potential to explore an additional pocket in the allosteric site. In particular, the designed molecules contain moieties of ...

journal_title：Bioorganic & medicinal chemistry letters

authors： Yan S,Appleby T,Larson G,Wu JZ,Hamatake RK,Hong Z,Yao N

更新日期：2007-04-01 00:00:00

abstract：:We report herein the synthesis and stereochemical structure-activity relationships of novel morpholine analogues 12 and 13 with regards to NK1, NK2 and NK3 tachykinin receptor binding affinity. An essential requirement for more potent binding affinities was controlled by absolute configuration. (S,R)-12 and (S,R)-13 e...

journal_title：Bioorganic & medicinal chemistry letters

authors： Nishi T,Ishibashi K,Takemoto T,Nakajima K,Fukazawa T,Iio Y,Itoh K,Mukaiyama O,Yamaguchi T

更新日期：2000-08-07 00:00:00

abstract：:The discovery of a series of novel, potent, and selective blockers of the cyclic nucleotide-modulated channel HCN1 is disclosed. Here we report an SAR study around a series of selective blockers of the HCN1 channel. Utilization of a high-throughput VIPR assay led to the identification of a novel series of 2,2-disubsti...

journal_title：Bioorganic & medicinal chemistry letters

authors： McClure KJ,Maher M,Wu N,Chaplan SR,Eckert WA 3rd,Lee DH,Wickenden AD,Hermann M,Allison B,Hawryluk N,Breitenbucher JG,Grice CA

更新日期：2011-09-15 00:00:00

abstract：:Poly(ADP-ribose) polymerases (PARPs) play significant roles in various cellular functions including DNA repair and control of RNA transcription. PARP inhibitors have been demonstrated to potentiate the effect of cytotoxic agents or radiation in a number of animal tumor models. Utilizing a benzimidazole carboxamide sca...

journal_title：Bioorganic & medicinal chemistry letters

authors： Zhu GD,Gandhi VB,Gong J,Thomas S,Luo Y,Liu X,Shi Y,Klinghofer V,Johnson EF,Frost D,Donawho C,Jarvis K,Bouska J,Marsh KC,Rosenberg SH,Giranda VL,Penning TD

更新日期：2008-07-15 00:00:00

abstract：:Chalcone type compound 1a ((E)-6'-benzylidene-4a'-methyl-4',4a',7',8'-tetrahydro-3'H-spiro[[1,3]dithiolane-2,2'-naphthalen]-5'(6'H)-one) was discovered as an potent inhibitor in melanogenesis. To define its structure-activity relationship, a series of analogs 1b-n, dithiolane truncated 2a-b and ring A removed 3a-e wer...

journal_title：Bioorganic & medicinal chemistry letters

authors： Thanigaimalai P,Lee KC,Sharma VK,Rao EV,Roh E,Kim Y,Jung SH

更新日期：2011-04-01 00:00:00

abstract：:Transglutaminase 2 (TG2) is a ubiquitously expressed, Ca(2+)-activated extracellular enzyme in mammals that is maintained in a catalytically dormant state by multiple mechanisms. Although its precise physiological role in the extracellular matrix remains unclear, aberrantly up-regulated TG2 activity is a hallmark of s...

journal_title：Bioorganic & medicinal chemistry letters

authors： Yi MC,Palanski BA,Quintero SA,Plugis NM,Khosla C

更新日期：2015-11-01 00:00:00

abstract：:Analysis of the enantiomers of rosiglitazone in a PPAR gamma binding assay suggests that the (S)-(-)-isomer is responsible for the antidiabetic activity. ...

journal_title：Bioorganic & medicinal chemistry letters

authors： Parks DJ,Tomkinson NC,Villeneuve MS,Blanchard SG,Willson TM

更新日期：1998-12-15 00:00:00

abstract：:Juglone is a natural compound which has been isolated from Juglans mandshurica Maxim. Recent studies have shown that juglone had various pharmacological effects such as anti-viral, anti-bacterial and anti-cancer. However, its anti-cancer activity on human prostate cancer LNCaP cell has not been examined. Thus, the cur...

journal_title：Bioorganic & medicinal chemistry letters

authors： Xu H,Yu X,Qu S,Sui D

更新日期：2013-06-15 00:00:00

abstract：:Eight hydroxyl-substituted Schiff bases with the different number and position of hydroxyl group on the two asymmetric aromatic rings (A and B rings) were prepared by the reaction between the corresponding aromatic aldehyde and aniline. Their antioxidant effects against the stable galvinoxyl radical (GO(.)) in ethyl a...

journal_title：Bioorganic & medicinal chemistry letters

authors： Cheng LX,Tang JJ,Luo H,Jin XL,Dai F,Yang J,Qian YP,Li XZ,Zhou B

更新日期：2010-04-15 00:00:00

abstract：:Several efficient synthetic routes for 2-, 4-, and 6-aryl-1,2,4-triazine-3,5-diones were developed. Derivatives were synthesized and studied as gonadotropin-releasing hormone antagonists in an effort to understand structure-activity relationships of the monocyclic compounds. ...

journal_title：Bioorganic & medicinal chemistry letters

authors： Pontillo J,Guo Z,Wu D,Struthers RS,Chen C

更新日期：2005-10-01 00:00:00

abstract：:A novel application of distance-based topological indices : Wiener (W)-, Szeged (Sz)-, Padmakar-Ivan (PI)-, and Sadhana (Sd)-indices in modeling electronic absorption bands of arene absorption spectra has been described. It is demonstrated that all these indices correlate linearly with the logarithm of beta and para e...

journal_title：Bioorganic & medicinal chemistry letters

authors： Khadikar PV,Singh S,Jaiswal M,Mandloi D

更新日期：2004-09-20 00:00:00

abstract：:A series of anthranilodinitrile-based biaryls were synthesized and evaluated in vitro against extracellular promastigotes and intracellular amastigotes of Leishmania donovani. Among various screened compounds, a biaryl with trifluoromethyl group 5f showed 83% inhibition against promastigotes and 70% inhibition against...

journal_title：Bioorganic & medicinal chemistry letters

authors： Singh FV,Vatsyayan R,Roy U,Goel A

更新日期：2006-05-15 00:00:00

abstract：:Two novel acridone-quinoline alkaloids, acriquinoline A (1) and acriquinoline B (2), together with twenty-two known compounds were isolated from the methanol extract of the root of Citrus reticulata Blanco. The structures of all compounds were determined by comprehensive analyses of their 1D and 2D NMR and mass spectr...

journal_title：Bioorganic & medicinal chemistry letters

authors： Fomani M,Ngeufa Happi E,Nouga Bisoue A,Ndom JC,Kamdem Waffo AF,Sewald N,Wansi JD

更新日期：2016-01-15 00:00:00

abstract：:Following the recent disclosure of 3-methyl pyrrole-2,4-dicarboxylic acid 2-propyl ester 4-(1,2,2-trimethyl-propyl) ester as a potent and selective mGluR1 non-competitive antagonist, the use of a doubly (13)C-labeled analogue to identify, and consequently prevent, metabolically labile positions is reported. ...

journal_title：Bioorganic & medicinal chemistry letters

authors： Micheli F,Cavanni P,Di Fabio R,Donati D,Hamdan M,Provera S,Tranquillini ME,Vitulli G

更新日期：2007-02-15 00:00:00

abstract：:A regiochemical and stereochemical mixture of flexible linkers bearing terminal azide functionality was synthesized in two steps from squalene and was used to connect two high affinity NDP-alpha-MSH ligands or two low affinity MSH(4) ligands. The ligands were N-terminally acylated using N-hydroxysuccinimidoyl 5-hexyno...

journal_title：Bioorganic & medicinal chemistry letters

authors： Jagadish B,Sankaranarayanan R,Xu L,Richards R,Vagner J,Hruby VJ,Gillies RJ,Mash EA

更新日期：2007-06-15 00:00:00

abstract：:In the course of our studies of the structure-activity relationships of himbacine 1, a potent antagonist of the M(2) subtype of muscarinic receptor, the four title compounds, 2, ent-2, 3, and ent-3, were synthesized with a highly stereoselective intermolecular Diels-Alder reaction of tetrahydroisobenzofuran 4 with ach...

journal_title：Bioorganic & medicinal chemistry letters

authors： Takadoi M,Yamaguchi K,Terashima S

更新日期：2002-11-18 00:00:00

abstract：:The synthesis and biological activity of amino acid functionalized beta-carboline derivatives, which are structurally related to azatoxin and the tryprostatins, are reported. These compounds were assayed for their growth inhibition properties in H520 and PC3 cell lines and were examined for their abilities to inhibit ...

journal_title：Bioorganic & medicinal chemistry letters

authors： Deveau AM,Labroli MA,Dieckhaus CM,Barthen MT,Smith KS,Macdonald TL

更新日期：2001-05-21 00:00:00

abstract：:Alkyl parabens are used as antimicrobial preservatives in cosmetics, food, and pharmaceutical products. However, the mode of action of these chemicals has not been assessed thoroughly. In this study, we determined the effects of alkyl parabens on plant pathogenic fungi. All the fungi tested, were susceptible to parabe...

journal_title：Bioorganic & medicinal chemistry letters

authors： Ito S,Yazawa S,Nakagawa Y,Sasaki Y,Yajima S

更新日期：2015-04-15 00:00:00

abstract：:We have identified 2-aminobenzylstatine derivatives that inhibit non-covalently the chymotrypsin-like activity of the human 20S proteasome. A structure-based optimisation approach has allowed us to improve the potency of this structural class of proteasome inhibitors from micromolar to nanomolar level. The new derivat...

journal_title：Bioorganic & medicinal chemistry letters

authors： Furet P,Imbach P,Fuerst P,Lang M,Noorani M,Zimmermann J,García-Echeverría C

更新日期：2002-05-20 00:00:00

abstract：:A group of (Z)-1,2-diphenyl-1-[4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]but-1-enes were synthesized using methodologies that will allow incorporation of a [(124)I]iodine substituent at the para-position of either the C-1 phenyl ring or the C-2 phenyl ring, or a [(18)F]OCH(2)CH(2)F substituent at the para-position of...

journal_title：Bioorganic & medicinal chemistry letters

authors： Abdellatif KR,Velázquez CA,Huang Z,Chowdhury MA,Knaus EE

更新日期：2011-02-15 00:00:00

abstract：:The synthesis and in vivo evaluation of (11)C -labeled uric acid ([(11)C]1), a potential imaging agent for the diagnosis of urate-related life-style diseases, was performed using positron emission tomography (PET) image analysis. First, the synthesis of [(11)C]1 was achieved by reacting 5,6-diaminouracil (2) with (11)...

journal_title：Bioorganic & medicinal chemistry letters

authors： Yashio K,Katayama Y,Takashima T,Ishiguro N,Doi H,Suzuki M,Wada Y,Tamai I,Watanabe Y

更新日期：2012-01-01 00:00:00

abstract：:We report the use of fragment screening and fragment based drug design to develop a PI3γ kinase fragment hit into a lead. Initial fragment hits were discovered by high concentration biochemical screening, followed by a round of virtual screening to identify additional ligand efficient fragments. These were developed i...

journal_title：Bioorganic & medicinal chemistry letters

authors： Hughes SJ,Millan DS,Kilty IC,Lewthwaite RA,Mathias JP,O'Reilly MA,Pannifer A,Phelan A,Stühmeier F,Baldock DA,Brown DG

更新日期：2011-11-01 00:00:00

abstract：:Introduction of a nitrogen atom into the 6-position of a series of pyrazolo[3,4-b]pyridines led to a dramatic improvement in the potency of GSK-3 inhibition. Rationalisation of the binding mode suggested participation of a putative structural water molecule, which was subsequently confirmed by X-ray crystallography. ...

journal_title：Bioorganic & medicinal chemistry letters

authors： Witherington J,Bordas V,Haigh D,Hickey DM,Ife RJ,Rawlings AD,Slingsby BP,Smith DG,Ward RW

更新日期：2003-05-05 00:00:00

abstract：:Cyclin-dependent kinase 5 (CDK5) is a serine-threonine protein kinase that plays a significant role in neuronal development. In association with p25, CDK5 abnormally phosphorylates a number of cellular targets involved in neurodegenerative disorders. Using active site homology and previous structure-activity relations...

journal_title：Bioorganic & medicinal chemistry letters

authors： Kaller MR,Zhong W,Henley C,Magal E,Nguyen T,Powers D,Rzasa RM,Wang W,Xiong X,Norman MH

更新日期：2009-12-01 00:00:00

abstract：:Cyclopenta[g]quinazoline-based inhibitors of thymidylate synthase (TS) possess a chiral centre at the 6-position of the molecule. The effect of this chirality on the inhibition of TS was investigated by synthesising compounds 6S-1a-c, 6R-1a-c. It was shown, in particular with the diastereoisomers 6S-1c, 6R-1c, that th...

journal_title：Bioorganic & medicinal chemistry letters

authors： Bavetsias V,Marriott JH,Theti DS,Melin JC,Wilson SC,Jackman AL

更新日期：2001-12-03 00:00:00

abstract：:We report the design, synthesis, and structure-activity relationship (SAR) of a series of novel pyrido[2,3-d]pyrimidin-7-one compounds as potent Abl kinase inhibitors. We evaluate their specificity profile against a panel of human recombinant kinases, as well as their biological profile toward a panel of well-characte...

journal_title：Bioorganic & medicinal chemistry letters

authors： Antczak C,Veach DR,Ramirez CN,Minchenko MA,Shum D,Calder PA,Frattini MG,Clarkson B,Djaballah H

更新日期：2009-12-15 00:00:00

abstract：:A stereocontrolled synthetic route has been used to prepare two of the geometric isomers of all-trans-GGPP. Neither of these isomers is effective substrates for mammalian GGTase I, but 3 is a potent inhibitor of this enzyme (IC(50)=100 nM). Surprisingly, both compounds are effective substrates for mammalian FTase. ...

journal_title：Bioorganic & medicinal chemistry letters

authors： Zahn TJ,Whitney J,Weinbaum C,Gibbs RA

更新日期：2001-06-18 00:00:00

abstract：:A series of novel pyrimidone analogues have been designed and synthesized as HIV-1 integrase (IN) inhibitors. This study demonstrated that introducing a substituent in the N1-position of the pyrimidone scaffold does not significantly influence IN inhibitory activity. Molecular docking studies showed these compounds co...

journal_title：Bioorganic & medicinal chemistry letters

authors： Yu S,Sanchez TW,Liu Y,Yin Y,Neamati N,Zhao G

更新日期：2013-11-15 00:00:00