2,3-Ethylene- and 2,3-trimethylene-bridged analogues of the group III metabotropic glutamate receptor ligand 2-amino-4-phosphonobutanoic acid.

abstract：:By recruiting the important moiety from Shikonin, a series of novel oxoindoline derivatives S1-S20 have been synthesized for inhibiting H. pylori urease. The most potent compound S18 displayed better activity (IC50 = 0.71 μM; MIC = 0.48 μM) than the positive controls AHA (IC50 = 17.2 μM) and Metronidazole (MIC = 31.3 ...

journal_title：Bioorganic & medicinal chemistry letters

authors： Yang YS,Su MM,Zhang XP,Liu QX,He ZX,Xu C,Zhu HL

更新日期：2018-10-15 00:00:00

abstract：:A novel PEG-A6-conjugated irinotecan derivative 8 was designed and synthesized as antitumor agent by the PEGylation and A6-peptide modification of irinotecan. In vivo antitumor activity screening assay revealed that 8 exhibited better in vivo antiproliferation activity than irinotecan and its previous PEG-cRGD-conjuga...

journal_title：Bioorganic & medicinal chemistry letters

authors： Huang YQ,Yuan JD,Ding HF,Song YS,Qian G,Wang JL,Ji M,Zhang Y

更新日期：2020-01-15 00:00:00

abstract：:A unique bicyclic peptide, moroidin (1), from the seeds of Celosia argentea (Amaranthaceae) strongly inhibited the polymerization of tubulin. The stereostructure of moroidin (1) was reinvestigated by spectroscopic data, chemical degradation, and molecular dynamics simulation. ...

journal_title：Bioorganic & medicinal chemistry letters

authors： Morita H,Shimbo K,Shigemori H,Kobayashi J

更新日期：2000-03-06 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：:A novel series of compounds derived from the previously reported N-type calcium channel blocker NP118809 (1-(4-benzhydrylpiperazin-1-yl)-3,3-diphenylpropan-1-one) is described. Extensive SAR studies resulted in compounds with IC(50) values in the range of 10-150 nM and selectivity over the L-type channels up to nearly...

journal_title：Bioorganic & medicinal chemistry letters

authors： Pajouhesh H,Feng ZP,Ding Y,Zhang L,Pajouhesh H,Morrison JL,Belardetti F,Tringham E,Simonson E,Vanderah TW,Porreca F,Zamponi GW,Mitscher LA,Snutch TP

更新日期：2010-02-15 00:00:00

abstract：:A novel series of oxadiazole EP1 receptor antagonists was identified by replacing the amide of a known glycine sulfonamide derivative with a 1,3,4-oxadiazole. Optimization of the substitution patterns on the three aromatic rings led to the identification of high affinity EP1 receptor antagonists. The derivative with h...

journal_title：Bioorganic & medicinal chemistry letters

authors： Hall A,Brown SH,Chowdhury A,Giblin GM,Gibson M,Healy MP,Livermore DG,Wilson RJ,Naylor A,Rawlings DA,Roman S,Ward E,Willay C

更新日期：2007-08-15 00:00:00

abstract：:The synthesis and biological evaluation of novel antagonists of the rat H(3) receptor are described. These compounds differ from prototypical H(3) antagonists in that they do not contain an imidazole moiety, but rather a substituted aminopyrrolidine moiety. A systematic modification of the substituents on the aminopyr...

journal_title：Bioorganic & medicinal chemistry letters

authors： Vasudevan A,Conner SE,Gentles RG,Faghih R,Liu H,Dwight W,Ireland L,Kang CH,Esbenshade TA,Bennani YL,Hancock AA

更新日期：2002-11-04 00:00:00

abstract：:A series of novel 5-(substituted benzylidene)thiazolidine-2,4-dione derivatives was designed, and synthesized based on our previous studies. Also their activities were evaluated as competitive inhibitors of protein tyrosine phosphatase 1B (PTP1B). Compounds 6d-6g, 7b, 7c, 7e, 7j, 7k, 7m, 14b and 14e-14f showed potent ...

journal_title：Bioorganic & medicinal chemistry letters

authors： Wang Z,Liu Z,Lee W,Kim SN,Yoon G,Cheon SH

更新日期：2014-08-01 00:00:00

abstract：:This work describes a set of discovery research studies of an influenza cap-dependent endonuclease (CEN) inhibitor with a carbamoyl pyridone bicycle (CAB) scaffold. Using influenza CEN inhibitory activity, antiviral activity and pharmacokinetic (PK) parameters as indices, structure activity relationships (SAR) studies...

journal_title：Bioorganic & medicinal chemistry letters

authors： Taoda Y,Miyagawa M,Akiyama T,Tomita K,Hasegawa Y,Yoshida R,Noshi T,Shishido T,Kawai M

更新日期：2020-11-15 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：:The first non-substrate like inhibitors of human cytosolic phosphoenolpyruvate carboxykinase (PEPCK) competitive with GTP are reported. An effort to discover orally active compounds that improve glucose homeostasis in Type 2 diabetics by reversibly inhibiting PEPCK led to the discovery of 1-allyl-3-butyl-8-methylxanth...

journal_title：Bioorganic & medicinal chemistry letters

authors： Foley LH,Wang P,Dunten P,Ramsey G,Gubler ML,Wertheimer SJ

更新日期：2003-10-20 00:00:00

abstract：:A focused library of rhodanine compounds containing novel substituents at the C5-position was synthesized and tested in vitro against a panel of clinically relevant MRSA strains. The present SAR study was based on our lead compound 1 (MIC=1.95 μg/mL), with a focus on identifying optimal C5-arylidene substituents. In o...

journal_title：Bioorganic & medicinal chemistry letters

authors： Patel BA,Ashby CR Jr,Hardej D,Talele TT

更新日期：2013-10-15 00:00:00

abstract：:A novel series of 3-pyrrolo[b]cyclohexylene-2-dihydroindolinone derivatives targeting VEGFR-2, PDGFR-β and c-Kit kinases were designed and synthesized. The molecular design was based on the SAR features of indolin-2-ones as kinase inhibitors. SAR study of the series allowed us to identify compounds possessing more pot...

journal_title：Bioorganic & medicinal chemistry letters

authors： Ding L,Tang F,Huang W,Jin Q,Shen H,Wei P

更新日期：2013-10-15 00:00:00

abstract：:The cross talk between different membrane receptors is the source of increasing research. We designed and synthesized a new hetero-bivalent ligand that has antagonist properties on both A(1) adenosine and mu opiate receptors with a K(i) of 0.8+/-0.05 and 0.7+/-0.03 microM, respectively. This hybrid molecule increases ...

journal_title：Bioorganic & medicinal chemistry letters

authors： Mathew SC,Ghosh N,By Y,Berthault A,Virolleaud MA,Carrega L,Chouraqui G,Commeiras L,Condo J,Attolini M,Gaudel-Siri A,Ruf J,Parrain JL,Rodriguez J,Guieu R

更新日期：2009-12-01 00:00:00

abstract：:Prodrugs bioreductively activated to bleomycin analogues are reported. The production of hydroxyl radicals in the presence of FE(II) and dioxygen by both the prodrugs and the activated products are determined and their in vitro cytotoxicity measured. ...

journal_title：Bioorganic & medicinal chemistry letters

authors： Highfield JA,Mehta LK,Parrick J,Candeias LP,Wardman P

更新日期：1998-09-22 00:00:00

abstract：:Sixteen new and one known unsymmetrical open-chain diacylamines were synthesized by sodium methoxide catalyzed acylation of amides with carboxylic esters and acylamino-carboxylic esters, or acylureas with acylamino-carboxylic esters and alpha-amino acid esters. ...

journal_title：Bioorganic & medicinal chemistry letters

authors： Weisz I,Roboz J,Wolf I,Szabo J,Bekesi JG

更新日期：1998-11-17 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：:A nucleopeptide was prepared in a convergent manner via segmental coupling of the protected biopolymers in solution. The resulting nucleopeptide (4b, 72%) containing the binding site of lambda repressor and a peptide containing the consensus sequence of the DNA binding helix of the helix turn-helix-proteins was obtain...

journal_title：Bioorganic & medicinal chemistry letters

authors： McMinn DL,Greenberg MM

更新日期：1999-02-22 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：:Different types of heterogenized catalysts were involved in asymmetric reactions. Hydrogen transfer reduction was performed with amino alcohols derived from poly((S)-(GMA-co-EGDMA or DVB)) and hydrogenation with BINAP grafted onto PEG or copolymerized with isocyanates as ligands. Attempts of catalysts recycling are re...

journal_title：Bioorganic & medicinal chemistry letters

authors： Saluzzo C,Lamouille T,Hérault D,Lemaire M

更新日期：2002-07-22 00:00:00

abstract：:A novel series of non-nucleoside small molecules containing a tricyclic dihydropyridinone structural motif was identified as potent HCV NS5B polymerase inhibitors. Driven by structure-based design and building on our previous efforts in related series of molecules, we undertook extensive SAR studies, in which we ident...

journal_title：Bioorganic & medicinal chemistry letters

authors： Ruebsam F,Murphy DE,Tran CV,Li LS,Zhao J,Dragovich PS,McGuire HM,Xiang AX,Sun Z,Ayida BK,Blazel JK,Kim SH,Zhou Y,Han Q,Kissinger CR,Webber SE,Showalter RE,Shah AM,Tsan M,Patel RA,Thompson PA,Lebrun LA,Hou HJ,

更新日期：2009-11-15 00:00:00

abstract：:Among a series of taxinine (1) and its designed derivatives (2-33), two taxoids (29 and 33) increased cellular accumulation of vincristine in multidrug-resistant tumor cells more potently than verapamil, while the activities of eight taxoids (11, 14-16, 22, and 30-32) were comparable with that of verapamil. These resu...

journal_title：Bioorganic & medicinal chemistry letters

authors： Hosoyama H,Shigemori H,Tomida A,Tsuruo T,Kobayashi J

更新日期：1999-02-08 00:00:00

abstract：:Several derivatives of hadacidin have been developed and evaluated for activity against adenylosuccinate synthetase. ...

journal_title：Bioorganic & medicinal chemistry letters

authors： Tibrewal N,Elliott GI

更新日期：2011-01-01 00:00:00

abstract：:The study by the molecular orbital theory displayed that morphine and lysine make two types of the interactions between them: type (A) by three hydrogen bondings and type (B) by one hydrogen bonding accompanied with a proton transfer. The stabilization energies were 45.3 and 34.9 kcal/mol for type (A) and type (B), re...

journal_title：Bioorganic & medicinal chemistry letters

authors： Nakai S,Yoneda F

更新日期：2001-06-04 00:00:00

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

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

abstract：:During development of nitroheterocycles with potential antimycobacterial activities we have tested against Mycobacterium tuberculosis a number of pyrroles strictly related to pyrrolnitrin, an antifungal antibiotic isolated from Streptomyces pyrrocinia. Some of the tested arylpyrrole derivatives and pyrrolnitrin have s...

journal_title：Bioorganic & medicinal chemistry letters

authors： Di Santo R,Costi R,Artico M,Massa S,Lampis G,Deidda D,Pompei R

更新日期：1998-10-20 00:00:00

abstract：:Serine/threonine kinase PIM3 is a potential therapeutic target for pancreatic cancer. Here, we describe the evolution of our previous PIM1 inhibitor 1 into PIM3 inhibitor 11 guided by use of the crystal structure of PIM1 as a surrogate to provide a basis for rational modification. Compound 11 potently inhibits PIM3 ki...

journal_title：Bioorganic & medicinal chemistry letters

authors： Nakano H,Hasegawa T,Saito N,Furukawa K,Mukaida N,Kojima H,Okabe T,Nagano T

更新日期：2015-12-15 00:00:00

abstract：:Microsomal prostaglandin E(2) synthase-1 (mPGES-1) is a novel therapeutic target for the treatment of inflammation and pain. In the preceding letter, we detailed the discovery of clinical candidate PF-04693627, a potent mPGES-1 inhibitor possessing a novel benzoxazole structure. While PF-04693627 was undergoing furthe...

journal_title：Bioorganic & medicinal chemistry letters

authors： Walker DP,Arhancet GB,Lu HF,Heasley SE,Metz S,Kablaoui NM,Franco FM,Hanau CE,Scholten JA,Springer JR,Fobian YM,Carter JS,Xing L,Yang S,Shaffer AF,Jerome GM,Baratta MT,Moore WM,Vazquez ML

更新日期：2013-02-15 00:00:00

abstract：:Hispidol, an aurone, isolated from Glycine max Merrill, was found to potently and selectively inhibit an isoform of recombinant human monoamine oxidase-A (MAO-A), with an IC50 value of 0.26 µM, and to inhibit MAO-B, but with lower potency (IC50 = 2.45 µM). Hispidol reversibly and competitively inhibited MAO-A with a K...

journal_title：Bioorganic & medicinal chemistry letters

authors： Baek SC,Lee HW,Ryu HW,Kang MG,Park D,Kim SH,Cho ML,Oh SR,Kim H

更新日期：2018-02-15 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