Design, synthesis, and structure-activity relationships of pyrazole derivatives as potential FabH inhibitors.

abstract：:The impact of lipophilicity as a factor contributing to hERG potency is assessed for a large dataset of compounds of differing ionisation type. This dataset is derived from compounds tested in the IonWorks-based in vitro electrophysiology hERG assay at AstraZeneca. Using logistic regression, a quantification of the ri...

journal_title：Bioorganic & medicinal chemistry letters

authors： Waring MJ,Johnstone C

更新日期：2007-03-15 00:00:00

abstract：:4-Deacetoxyagosterol A was synthesized from ergosterol by utilizing reductive regioselective epoxy cleavage as a key reaction. This synthesized congener of agosterol A, a spongean MDR-modulator. showed similar MDR-modulating activity against KB CV-60 cells overexpressing MRP. ...

journal_title：Bioorganic & medicinal chemistry letters

authors： Murakami N,Sugimoto M,Morita M,Akiyama S,Kobayashi M

更新日期：2000-11-20 00:00:00

abstract：:The resistance of pathogenic fungi and failure of drug therapy increased dramatically. Numerous studies have reported the individual or synergistic antifungal potency of natural and synthesized flavonoids, especially against drug-resistant fungi. This brief review summarizes the structure and individual or synergistic...

journal_title：Bioorganic & medicinal chemistry letters

authors： Jin YS

更新日期：2019-10-01 00:00:00

abstract：:A series of COX-2 selective inhibitor nimesulide derivatives were synthesized. Their anti-cell proliferation activities were evaluated with a long-term estrogen deprived MCF-7aro (LTEDaro) breast cancer cell line, which is the biological model of aromatase inhibitor resistance for hormone-dependent breast cancer. Comp...

journal_title：Bioorganic & medicinal chemistry letters

authors： Su B,Chen S

更新日期：2009-12-01 00:00:00

abstract：:A series of MT-II related cyclic peptides, based on potent but non-selective hMC4R agonist (Penta-c[Asp-His(6)-DPhe(7)-Arg(8)-Trp(9)-Lys]-NH(2)) was prepared in which His(6) residue was systematically substituted. Two of the most interesting peptides identified in this study are Penta-c[Asp-5-ClAtc-DPhe-Arg-Trp-Lys]-N...

journal_title：Bioorganic & medicinal chemistry letters

authors： Cheung AW,Danho W,Swistok J,Qi L,Kurylko G,Rowan K,Yeon M,Franco L,Chu XJ,Chen L,Yagaloff K

更新日期：2003-04-07 00:00:00

abstract：:Following the promising activity of Q2FA15 on axonal growth, two new series of N/O-substituted QFAs were synthesized, based on a SN2-type reaction. O-alkylated QFA bearing 14 carbon atoms on the side chain (n=14) shows a very potent activity on axonal growth though lowered when compared to Q2FA15. While O-alkylation a...

journal_title：Bioorganic & medicinal chemistry letters

authors： Hanbali M,Bagnard D,Luu B

更新日期：2006-08-01 00:00:00

abstract：:Six 3'R,4'R-di-O-(S)-camphanoyl-2',2'-dimethyldihydropyrano[2,3-f]chromone (DCP) and two 3'R,4'R-di-O-(S)-camphanoyl-(+)-cis-khellactone (DCK) derivatives were designed, synthesized, and evaluated for inhibition of HIV-1(NL4-3) replication in TZM-bl cells. 2-Ethyl-2'-monomethyl-1'-oxa- and -1'-thia-DCP (5a, 6a), as we...

journal_title：Bioorganic & medicinal chemistry letters

authors： Liu HS,Xu SQ,Cheng M,Chen Y,Xia P,Qian K,Xia Y,Yang ZY,Chen CH,Morris-Natschke SL,Lee KH

更新日期：2011-10-01 00:00:00

abstract：:A series of multisubstituted indole-acrylonitrile hybrids were designed, synthesized and evaluated for their potential cytotoxic activities. The bio-evaluation results indicated that some of the target compounds (such as 3a, 3f, 3k, 3n) exhibited good to moderate cytotoxic effect on HepG2, BCG-823, BEL-7402, and HL-77...

journal_title：Bioorganic & medicinal chemistry letters

authors： Ke S,Yang Z,Zhang Z,Liang Y,Wang K,Liu M,Shi L

更新日期：2014-04-15 00:00:00

abstract：:Oligonucleotides consisting of 2'-deoxy-2'(S)-ethinyl-thymidine,-uridine, and -adenosine have been prepared. Whereas the modified pyrimidine oligonucleotides uniformly lead to weaker pairing affinity with DNA and RNA complements, the corresponding adenine oligonucleotides show enhanced thermal stability in duplexes wi...

journal_title：Bioorganic & medicinal chemistry letters

authors： Buff R,Hunziker J

更新日期：1998-03-03 00:00:00

abstract：:A series of novel coumarin derivatives containing 4,5-dihydropyrazole moiety as potential telomerase inhibitors were synthesized. The bioassay tests show that compound 3d exhibited potentially high activity against human gastric cancer cell SGC-7901 with IC(50) value of 2.69 ± 0.60 μg/mL. All title compounds were assa...

journal_title：Bioorganic & medicinal chemistry letters

authors： Liu XH,Liu HF,Chen J,Yang Y,Song BA,Bai LS,Liu JX,Zhu HL,Qi XB

更新日期：2010-10-01 00:00:00

abstract：:Synthesis and structure-activity relationships (SAR) of a novel series of vasopressin V(1b) (V(3)) antagonists are described. 2-(4-Oxo-2-aryl-quinazolin-3(4H)-yl)acetamides have been identified with low nanomolar affinity for the V(1b) receptor and good selectivity with respect to related receptors V(1a), V(2) and oxy...

journal_title：Bioorganic & medicinal chemistry letters

authors： Napier SE,Letourneau JJ,Ansari N,Auld DS,Baker J,Best S,Campbell-Wan L,Chan JH,Craighead M,Desai H,Goan KA,Ho KK,Hulskotte EG,MacSweeney CP,Milne R,Morphy JR,Neagu I,Ohlmeyer MH,Peeters AW,Presland J,Riviello C,

更新日期：2011-03-15 00:00:00

abstract：:We report SAR studies on a novel non-peptidic somatostatin receptor 3 (SSTR3) agonist lead series derived from (4-phenyl-1H-imidazol-2-yl)methanamine. This effort led to the discovery of a highly potent low molecular weight SSTR3 agonist 5c (EC50=5.2 nM, MW=359). The results from molecular overlays of 5c onto the L-12...

journal_title：Bioorganic & medicinal chemistry letters

authors： Lai Z,He S,Sherer EC,Wu Z,Yu Y,Ball R,Hong Q,Yang DX,Guo L,Li D,Tuang Q,Chicchi GG,Trusca D,Tsao KL,Zhou YP,Howard AD,Nargund RP,Hagmann WK

更新日期：2015-09-01 00:00:00

abstract：:A series of new coumarin-based 1,2,4-triazole derivatives were designed, synthesized and evaluated for their antimicrobial activities in vitro against four Gram-positive bacteria (Staphylococcus aureus, MRSA, Bacillus subtilis and Micrococcus luteus), four Gram-negative bacteria (Escherichia coli, Proteus vulgaris, Sa...

journal_title：Bioorganic & medicinal chemistry letters

authors： Shi Y,Zhou CH

更新日期：2011-02-01 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：: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 P(1) moiety. Replacement of the benzothiophene with different heterocyclic sy...

journal_title：Bioorganic & medicinal chemistry letters

authors： Lo HY,Nemoto PA,Kim JM,Hao MH,Qian KC,Farrow NA,Albaugh DR,Fowler DM,Schneiderman RD,Michael August E,Martin L,Hill-Drzewi M,Pullen SS,Takahashi H,De Lombaert S

更新日期：2011-08-01 00:00:00

abstract：:Surface enhanced resonance Raman scattering (SERRS) is an alternative to fluorescence for use in bioanalysis however due to the different optical mechanism it requires specifically designed reporters. Recently we have reported the use of 8-hydroxyquinolinyl azo dyes and their ester derivatives as reporters of lipase a...

journal_title：Bioorganic & medicinal chemistry letters

authors： Ingram A,Moore BD,Graham D

更新日期：2009-03-15 00:00:00

abstract：:The CXCR2 SAR of a series of bicyclic antagonists such as the 2-aminothiazolo[4,5-d]pyrimidine 3b was investigated by systematic variation of the fused pyrimidine-based heterocyclic cores. Replacement of the aminothiazole ring with a 2-thiazolone alternative led to a series of thiazolo[4,5-d]pyrimidine-2(3H)-one antag...

journal_title：Bioorganic & medicinal chemistry letters

authors： Walters I,Austin C,Austin R,Bonnert R,Cage P,Christie M,Ebden M,Gardiner S,Grahames C,Hill S,Hunt F,Jewell R,Lewis S,Martin I,David Nicholls,David Robinson

更新日期：2008-01-15 00:00:00

abstract：:3-Trifluoromethylflavonoid derivatives were prepared for the first time by trifluoromethylation of 3-iodoflavonoid derivatives. Other C ring and B ring trifluoromethylated flavonoid derivatives were also prepared. All the compounds were tested for their effect on the U2OS cell cycle in vitro. Bistrifluoromethylated ap...

journal_title：Bioorganic & medicinal chemistry letters

authors： Wang CL,Li HQ,Meng WD,Qing FL

更新日期：2005-10-15 00:00:00

abstract：:The CO-releasing properties of iron(0)tricarbonyl complexes bearing a 2-pyrone ligand have been evaluated. In this report, we demonstrate that the intrinsic stability of the (eta4-2-pyrone)Fe(CO)3 complex influences the extent and rate of CO release, which is affected by the presence of a halogen substituent on the 2-...

journal_title：Bioorganic & medicinal chemistry letters

authors： Fairlamb IJ,Duhme-Klair AK,Lynam JM,Moulton BE,O'Brien CT,Sawle P,Hammad J,Motterlini R

更新日期：2006-02-15 00:00:00

abstract：:New Lp-PLA(2) inhibitors were synthesized by the bioisosteric replacement of the amide group of Darapladib with an imidazole or a triazole. Unfortunately, the inhibitory activities of these derivatives were lower than that of Darapladib. But interestingly, a series of quaternary ammonium salts that were isolated as by...

journal_title：Bioorganic & medicinal chemistry letters

authors： Wang K,Xu W,Liu Y,Zhang W,Wang W,Shen J,Wang Y

更新日期：2013-03-01 00:00:00

abstract：:Heterocyclic amide isosteres were incorporated into a phenylglycine-based tissue factor/factor VIIa (TF-FVIIa) inhibitor chemotype, providing potent inhibitors. An X-ray co-crystal structure of phenylimidazole 19 suggested that an imidazole nitrogen atom effectively mimics an amide carbonyl, while the phenyl ring form...

journal_title：Bioorganic & medicinal chemistry letters

authors： Glunz PW,Cheng X,Cheney DL,Weigelt CA,Wei A,Luettgen JM,Wong PC,Wexler RR,Priestley ES

更新日期：2015-01-01 00:00:00

abstract：:Sulfamoyl benzamides were identified as a novel series of cannabinoid receptor ligands. Starting from a screening hit 8 that had modest affinity for the cannabinoid CB(2) receptor, a parallel synthesis approach and initial SAR are described, leading to compound 27 with 120-fold functional selectivity for the CB(2) rec...

journal_title：Bioorganic & medicinal chemistry letters

authors： Worm K,Zhou QJ,Saeui CT,Green RC,Cassel JA,Stabley GJ,DeHaven RN,Conway-James N,LaBuda CJ,Koblish M,Little PJ,Dolle RE

更新日期：2008-05-01 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：:Optimisation of a series of 4-piperidinyltriazoles led to the identification of compound 28a which showed good whole cell antiviral activity, excellent selectivity over the hERG ion channel and complete oral absorption. ...

journal_title：Bioorganic & medicinal chemistry letters

authors： Barber CG,Blakemore DC,Chiva JY,Eastwood RL,Middleton DS,Paradowski KA

更新日期：2009-03-01 00:00:00

abstract：:[60]Fullerenols carrying mono- and bis-alpha-D-mannosyl linkages on the surface were prepared via a [3+2]-cycloaddition reaction between 2-azidoethyl alpha-D-mannoside and C(60) followed by polyhydroxylation with aqueous NaOH. Their biological activity was evaluated in terms of binding affinity to lectins by hemagglut...

journal_title：Bioorganic & medicinal chemistry letters

authors： Kato H,Yashiro A,Mizuno A,Nishida Y,Kobayashi K,Shinohara H

更新日期：2001-11-19 00:00:00

abstract：:Herein we report the preparation of 3,4-dibenzylfurans and some oxidized derivatives with lignan backbone. The compounds were prepared using the Friedel-Crafts reaction with BF3 etherate as catalyst, demethylation with iodocyclohexane, acetylation and oxidation reactions. The antimicrobial activity was evaluated throu...

journal_title：Bioorganic & medicinal chemistry letters

authors： Tufano I,Buommino E,Iesce MR,De Filippis A,Grieco P,Lembo F,DellaGreca M

更新日期：2020-09-01 00:00:00

abstract：:Ubiquitin-dependent proteolysis of cellular proteins is one of the major pathways to regulate protein function posttranslationally. Here we demonstrate a potentially general method of degrading any targeted proteins by the ubiquitin-dependent proteolysis in living cells, using small-molecule proteolysis inducer (SMPI)...

journal_title：Bioorganic & medicinal chemistry letters

authors： Zhang D,Baek SH,Ho A,Kim K

更新日期：2004-02-09 00:00:00

abstract：:Novel 8-aryl and 8-aroyl substituted derivatives of 3-(dipropylamino)chroman are described. The compounds have been prepared by a palladium catalyzed reaction of iodoarenes and a stannylated derivative of [eta6-3-(dipropylamino)chroman]Cr(CO)3. Several of the compounds have high affinity for 5-HT1A receptors whereas t...

journal_title：Bioorganic & medicinal chemistry letters

authors： Caldirola P,Chowdhury R,Unelius L,Mohell N,Hacksell U,Johansson AM

更新日期：1999-06-07 00:00:00

abstract：:A series of novel curcumin bisacetamides aiming of enriching their biological activities have been synthesized. The synthesized compounds were screened for their in vitro antioxidant, anti-inflammatory and cytotoxic activities. All the compounds exhibited potent to good anti-inflammatory, antioxidant and noteworthy cy...

journal_title：Bioorganic & medicinal chemistry letters

authors： Sribalan R,Kirubavathi M,Banuppriya G,Padmini V

更新日期：2015-10-01 00:00:00

abstract：:We have developed two novel series of tetrasubstituted pyrazoles, embodying 1,3-diaryl-4,5-dialkyl or 3,5-diaryl-1,4-dialkyl substitution patterns. The scope of a regioselective method, developed by us earlier, was expanded to allow the synthesis of the first series of these tetrasubstituted pyrazoles directly from al...

journal_title：Bioorganic & medicinal chemistry letters

authors： Nishiguchi GA,Rodriguez AL,Katzenellenbogen JA

更新日期：2002-03-25 00:00:00