Pyrrolidine-carboxamides and oxadiazoles as potent hNK1 antagonists.

abstract：:N-1-Alkylamino and N-1-alkyloxy-4-hydroxyquinolon-3-yl benzothiadiazines were synthesized and evaluated as inhibitors of genotype 1 HCV polymerase. The N-1-alkyloxy derivatives were not potent inhibitors, however N-1-alkylamino derivatives displayed comparable potency to carbon analogs. Analogs with aliphatic substitu...

journal_title：Bioorganic & medicinal chemistry letters

authors： Pratt JK,Donner P,McDaniel KF,Maring CJ,Kati WM,Mo H,Middleton T,Liu Y,Ng T,Xie Q,Zhang R,Montgomery D,Molla A,Kempf DJ,Kohlbrenner W

更新日期：2005-03-15 00:00:00

abstract：:In our search for potent inhibitors of the enzyme estrone sulfatase (ES), we have undertaken the synthesis and biochemical evaluation of a range of straight chain alkyl esters of 4-[(aminosulfonyl)oxy] benzoic acid. The results of the study show that the synthesised compounds possess greater inhibitory activity when c...

journal_title：Bioorganic & medicinal chemistry letters

authors： Ahmed S,James K,Owen CP

更新日期：2002-09-02 00:00:00

abstract：:A series of 2-phenyl- or 3-phenyl piperazines, structurally related to DM235 and DM232, two potent nootropic agents, have been prepared and tested in the mouse passive-avoidance test, to assess their ability to revert scopolamine-induced amnesia. Although the newly synthesized molecules were less potent than the paren...

journal_title：Bioorganic & medicinal chemistry letters

authors： Guandalini L,Martino MV,Di Cesare Mannelli L,Bartolucci G,Melani F,Malik R,Dei S,Floriddia E,Manetti D,Orlandi F,Teodori E,Ghelardini C,Romanelli MN

更新日期：2015-04-15 00:00:00

abstract：:The synthesis and biological evaluation of new potent opioid receptor-like 1 antagonists are presented. A structure-activity relationship (SAR) study of arylpyrazole lead compound 1 obtained from library screening identified compound 31, (1S,3R)-N-{[1-(3-chloropyridin-2-yl)-5-(5-fluoro-6-methylpyridin-3-yl)-4-methyl-1...

journal_title：Bioorganic & medicinal chemistry letters

authors： Kobayashi K,Uchiyama M,Ito H,Takahashi H,Yoshizumi T,Sakoh H,Nagatomi Y,Asai M,Miyazoe H,Tsujita T,Hirayama M,Ozaki S,Tani T,Ishii Y,Ohta H,Okamoto O

更新日期：2009-07-01 00:00:00

abstract：:A homology model of the nicotinic acid receptor GPR109A was constructed based on the X-ray crystal structure of bovine rhodopsin. An HTS hit was docked into the homology model. Characterization of the binding pocket by a grid-based surface calculation of the docking model suggested that a larger hydrophobic body plus ...

journal_title：Bioorganic & medicinal chemistry letters

authors： Deng Q,Frie JL,Marley DM,Beresis RT,Ren N,Cai TQ,Taggart AK,Cheng K,Carballo-Jane E,Wang J,Tong X,Waters MG,Tata JR,Colletti SL

更新日期：2008-09-15 00:00:00

abstract：:Several classes of flavonoids (flavones, flavanones, 2'-hydroxychalcones and flavan-4-ols) having a variety of substituents on A ring were investigated for their antiproliferative activity against MCF-7 human breast cancer cells. Structure-activity relationships of these compounds were discussed. 2'-hydroxychalcones a...

journal_title：Bioorganic & medicinal chemistry letters

authors： Pouget C,Lauthier F,Simon A,Fagnere C,Basly JP,Delage C,Chulia AJ

更新日期：2001-12-17 00:00:00

abstract：:A virtual screening system based on one-class classification with molecular fingerprints as descriptors is developed and tested on a series of 1226 inhibitors and 209 noninhibitors of glycogen synthase kinase 3β (GSK-3β). The suggested system outperforms the ones based on pharmacophore hypothesis and molecular docking...

journal_title：Bioorganic & medicinal chemistry letters

authors： Karpov PV,Osolodkin DI,Baskin II,Palyulin VA,Zefirov NS

更新日期：2011-11-15 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：:To improve the drug-ability of celastrol, a series of PEGylation celastrol (PEGC) were designed and synthesized by conjugation with different kinds of polyethylene glycols (PEGs) with celastrol. Most of PEGCs could easily dissolve in water. In particular, one of them (DC1000) could be dispersed in water to form nanopa...

journal_title：Bioorganic & medicinal chemistry letters

authors： Shan WG,Wang HG,Wu R,Zhan ZJ,Ma LF

更新日期：2019-03-01 00:00:00

abstract：:Novel analogues of the angiotensin I-converting enzyme (ACE) inhibitor keto-ACE were synthesized via a facile Horner-Emmons olefination of a phosphonoketone precursor with ethyl glyoxylate. Introduction of a bulky aromatic tryptophan at the P(2)(') position of keto-ACE resulted in a significant increase in C-domain-se...

journal_title：Bioorganic & medicinal chemistry letters

authors： Nchinda AT,Chibale K,Redelinghuys P,Sturrock ED

更新日期：2006-09-01 00:00:00

abstract：:A series of novel pyrazole peptidomimetics was synthesized from 3-aryl-1-arylmethyl-1H-pyrazole-5-carboxylic acid and amino acid ester. Structures of the compounds were characterized by means of IR, (1)H NMR and mass spectroscopy. Compounds 5e and 5k suppress effectively the growth of A549 lung cancer cells. Prelimina...

journal_title：Bioorganic & medicinal chemistry letters

authors： Liu YR,Luo JZ,Duan PP,Shao J,Zhao BX,Miao JY

更新日期：2012-11-15 00:00:00

abstract：:A series of 7-alkyl ether derivatives related to zanamivir were synthesized using direct alkylation of the C-7 alcohol of sialic acid. Alkyl ether moiety of less than 12 carbons in length showed low nanomolar inhibitory activity against influenza A virus sialidase. Furthermore, their moiety improved influenza A virus ...

journal_title：Bioorganic & medicinal chemistry letters

authors： Honda T,Masuda T,Yoshida S,Arai M,Kaneko S,Yamashita M

更新日期：2002-08-05 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：:Based on the structure of 4-hydroxy-3-methyl-6-phenylbenzofuran-2-carboxylic acid ethyl ester (1), which exhibits selective cytotoxicity against a tumorigenic cell line, (2,4-dimethoxyphenyl)-(4-hydroxy-3-methyl-6-phenylbenzofuran-2-yl)-methanone (18m) was designed and synthesized as a biologically stable derivative c...

journal_title：Bioorganic & medicinal chemistry letters

authors： Hayakawa I,Shioya R,Agatsuma T,Furukawa H,Naruto S,Sugano Y

更新日期：2004-01-19 00:00:00

abstract：:Herein we report the preparation of a combinatorial library of compounds with potent CCR5 binding affinity. The library design was aided by SAR generated in a traditional medicinal chemistry effort. Compounds with novel combinations of subunits were discovered that have high binding affinity for the CCR5 receptor. A p...

journal_title：Bioorganic & medicinal chemistry letters

authors： Willoughby CA,Berk SC,Rosauer KG,Degrado S,Chapman KT,Gould SL,Springer MS,Malkowitz L,Schleif WA,Hazuda D,Miller M,Kessler J,Danzeisen R,Holmes K,Lineberger J,Carella A,Carver G,Emini EA

更新日期：2001-12-17 00:00:00

abstract：:Novel, low brain penetrant, orally bioavailable CB1 receptor agonists were designed starting from a mature lead series of potent brain penetrant CB1 receptor agonists. Increasing the calculated polar surface area was found to be a good strategy for reducing brain penetration whilst retaining drug-like properties. This...

journal_title：Bioorganic & medicinal chemistry letters

authors： Adam JM,Clark JK,Davies K,Everett K,Fields R,Francis S,Jeremiah F,Kiyoi T,Maidment M,Morrison A,Ratcliffe P,Prosser A,Schulz J,Wishart G,Baker J,Boyce S,Campbell R,Cottney JE,Deehan M,Martin I

更新日期：2012-04-15 00:00:00

abstract：:Various bis(2-hydroxy-3-chloropropyl)alkylamines were synthesized by coupling primary amine with epichlorohydrin and utilized as a monomer to react with ethylenediamine (EDA), N,N'-dimethylethylenediamine (DMEDA), or tetramethylethylenediamine (TMEDA) to generate a series of lipopolyhydroxylalkyleneamines. The number-...

journal_title：Bioorganic & medicinal chemistry letters

authors： Li Q,Zhang G,Marhefka J,Kameneva MV,Liu D

更新日期：2006-05-01 00:00:00

abstract：:Scavenger receptor A (SRA) has been implicated in the processes of tumor invasion and acts as an immunosuppressor during therapeutic cancer vaccination. Pharmacological inhibition of SRA function thus holds a great potential to improve treatment outcome of cancer therapy. Macromolecular natural product sennoside B was...

journal_title：Bioorganic & medicinal chemistry letters

authors： Yuan Y,Li X,Zaidi SA,Arnatt CK,Yu X,Guo C,Wang XY,Zhang Y

更新日期：2015-08-15 00:00:00

abstract：:Three new pseudo-symmetrical tamoxifen derivatives, RID-B (15), C (16), and D (17), were synthesized via the novel three-component coupling reaction, and the structure-activity relationships of the pseudo-symmetrical tamoxifen derivatives were examined. It was discovered that 15 strongly inhibits the viability of HL-6...

journal_title：Bioorganic & medicinal chemistry letters

authors： Shiina I,Sano Y,Nakata K,Kikuchi T,Sasaki A,Ikekita M,Hasome Y

更新日期：2007-05-01 00:00:00

abstract：:During the course of our investigations in the field of azole antimicrobial agents, we have identified BM212 a pyrrole derivative with good in vitro activity against mycobacteria and candidae. These findings prompted us to prepare new pyrrole derivatives 2-6 in the hope of increasing the activity. The microbiological ...

journal_title：Bioorganic & medicinal chemistry letters

authors： Biava M,Fioravanti R,Porretta GC,Deidda D,Maullu C,Pompei R

更新日期：1999-10-18 00:00:00

abstract：:A novel series of indole/indazole-aminopyrimidines was designed and synthesized with an aim to achieve optimal potency and selectivity for the c-Jun kinase family or JNKs. Structure guided design was used to optimize the series resulting in a significant potency improvement. The best compound (17) has IC50 of 3 nM for...

journal_title：Bioorganic & medicinal chemistry letters

authors： Gong L,Han X,Silva T,Tan YC,Goyal B,Tivitmahaisoon P,Trejo A,Palmer W,Hogg H,Jahagir A,Alam M,Wagner P,Stein K,Filonova L,Loe B,Makra F,Rotstein D,Rapatova L,Dunn J,Zuo F,Dal Porto J,Wong B,Jin S,Chang A,T

更新日期：2013-06-15 00:00:00

abstract：:Five-coordinated oxovanadium(IV) complexes with ciprofloxacin and various uninegative bidentate amino acids have been prepared. The structure of complexes has been investigated using spectral, physicochemical, mass spectroscopy, and elemental analyses. The antimicrobial activities (MIC) of the complexes, ligands, meta...

journal_title：Bioorganic & medicinal chemistry letters

authors： Patel MN,Patel SH,Chhasatia MR,Parmar PA

更新日期：2008-12-15 00:00:00

abstract：:The structure activity relationship on a series of ester and hydroxamate analogues of methionyl and isoleucyl adenylate has been investigated through introducing linkers between the 1'-position of ribose and adenine surrogates as methionyl-tRNA, and isoleucyl-tRNA synthetase inhibitors, respectively. The results indic...

journal_title：Bioorganic & medicinal chemistry letters

authors： Lee J,Kang SU,Kim SY,Kim SE,Kang MK,Jo YJ,Kim S

更新日期：2001-04-23 00:00:00

abstract：:The design and synthesis of 5-fluoro-6-[(2-aminoimidazol-1-yl)methyl]uracil (AIFU), a potent inhibitor of thymidine phosphorylase (TP) with K(i)-values of 11nM (ecTP) and 17nM (hTP), are described. Kinetic studies established that the type of inhibition of TP by AIFU is uncompetitive with respect to inorganic phosphat...

journal_title：Bioorganic & medicinal chemistry letters

authors： Jain HV,Rasheed R,Kalman TI

更新日期：2010-03-01 00:00:00

abstract：:The synthesis of six α,β,-unsaturated amides and six 2,4-disubstituted oxazolines derivatives and their evaluation against two Mycobacterium tuberculosis strains (sensitive H37Rv and a resistant clinical isolate) is reported. 2,4-Disubstituted oxazolines (S)-3b,d,e were the most active in the sensitive strain with a M...

journal_title：Bioorganic & medicinal chemistry letters

authors： Avalos-Alanís FG,Hernández-Fernández E,Carranza-Rosales P,López-Cortina S,Hernández-Fernández J,Ordóñez M,Guzmán-Delgado NE,Morales-Vargas A,Velázquez-Moreno VM,Santiago-Mauricio MG

更新日期：2017-02-15 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：:Glucokinase is a key enzyme in glucose homeostasis since it phosphorylates glucose to give glucose-6-phosphate, which is the first step in glycolysis. GK activators have been proven to lower blood-glucose, and therefore have potential as treatments for type 2 diabetes. Here the discovery of pyrazolopyrimidine GKAs is ...

journal_title：Bioorganic & medicinal chemistry letters

authors： Bonn P,Brink DM,Fägerhag J,Jurva U,Robb GR,Schnecke V,Svensson Henriksson A,Waring MJ,Westerlund C

更新日期：2012-12-15 00:00:00

abstract：:Screening of a metalloprotease library led to the identification of a thiol-based dual ACE/NEP inhibitor as a potent ACE2 inhibitor. Modifications of the P(1) benzyl moiety led to improvements in ACE2 potency as well as to increased selectivity versus ACE and NEP. ...

journal_title：Bioorganic & medicinal chemistry letters

authors： Deaton DN,Gao EN,Graham KP,Gross JW,Miller AB,Strelow JM

更新日期：2008-01-15 00:00:00

abstract：:The identification and optimization of a series of substituted tetrahydro-beta-carbolines with potent activity against human papillomavirus is described. Structure-activity studies focused on the substitution pattern and chirality of the beta-carboline ring system are discussed. Optimization of these parameters led to...

journal_title：Bioorganic & medicinal chemistry letters

authors： Miller JF,Turner EM,Sherrill RG,Gudmundsson K,Spaltenstein A,Sethna P,Brown KW,Harvey R,Romines KR,Golden P

更新日期：2010-01-01 00:00:00

abstract：:Treatment of diseases such as African sleeping sickness and leishmaniasis often depends on relatively expensive or toxic drugs, and resistance to current chemotherapeutics is an issue in treating these diseases and malaria. In this study, a new semi-synthetic berberine analogue, 5,6-didehydro-8,8-diethyl-13-oxodihydro...

journal_title：Bioorganic & medicinal chemistry letters

authors： Bahar M,Deng Y,Zhu X,He S,Pandharkar T,Drew ME,Navarro-Vázquez A,Anklin C,Gil RR,Doskotch RW,Werbovetz KA,Kinghorn AD

更新日期：2011-05-01 00:00:00