alpha-Keto amide inhibitors of aminopeptidases.

abstract：:A number of cycloalkyl substituents (from C-3 to C-8) have been introduced on the 6-amino group of adenosine, 1-deazaadenosine, and 2'-deoxyadenosine, bearing or not a chlorine atom at the 2-position, to evaluate the influence on the A(1) and A(2A) affinity of steric hindrance and lipophilicity. Furthermore, the guano...

journal_title：Journal of medicinal chemistry

authors： Vittori S,Lorenzen A,Stannek C,Costanzi S,Volpini R,IJzerman AP,Kunzel JK,Cristalli G

更新日期：2000-01-27 00:00:00

abstract：:Glucagon-like peptide-1 (GLP-1) has the ability to lower the blood glucose level, and its regulatory functions make it an attractive therapeutic agent for the treatment of type 2 diabetes. However, its rapid degradation by enzymes like dipeptidyl peptidase-IV (DPP-IV) and neutral endopeptidase (NEP) 24.11 severely com...

journal_title：Journal of medicinal chemistry

authors： Murage EN,Gao G,Bisello A,Ahn JM

更新日期：2010-09-09 00:00:00

abstract：:[4-Threonine, 7-glycine]oxytocin and [1-(L-2-hydroxy-3-mercaptopropanoic acid), 4-threonine, 7-glycine]oxytocin (hydroxy[Thr4, Gly7]oxytocin) were synthesized by a combination of solid-phase and classical methods of peptide synthesis. A protected octapeptide was synthesized by the solid-phase method and following ammo...

journal_title：Journal of medicinal chemistry

authors： Lowbridge J,Manning M,Haldar J,Sawyer WH

更新日期：1977-01-01 00:00:00

abstract：:In an attempt to synthesize pentamidine-aplysinopsin hybrid molecule 25, a lead molecule 8 (containing Z-configured aplysinopsin moiety) was identified for antileishmanial activity. Optimization of lead 8 provided 24 (containing E-configured aplysinopsin) possessing 10 times more activity and 401-fold less toxicity th...

journal_title：Journal of medicinal chemistry

authors： Porwal S,Chauhan SS,Chauhan PM,Shakya N,Verma A,Gupta S

更新日期：2009-10-08 00:00:00

abstract：:We have previously described a cyclic tetrapeptide, 1, that displays μ opioid receptor (MOPr) agonist and δ opioid receptor (DOPr) antagonist activity, a profile associated with a reduced incidence of opioid tolerance and dependence. Like many peptides, 1 has poor bioavailability. We describe here an analogue of 1 wit...

journal_title：Journal of medicinal chemistry

authors： Mosberg HI,Yeomans L,Anand JP,Porter V,Sobczyk-Kojiro K,Traynor JR,Jutkiewicz EM

更新日期：2014-04-10 00:00:00

abstract：:We report herein further insight into the biological activities displayed by a series of 2-hydroxyisoquinoline-1,3(2H,4H)-diones (HIDs). Substitution of the N-hydroxyimide two-metal binding pharmacophore at position 4 by carboxamido side chains was previously shown by us to be fruitful for this scaffold, since strong ...

journal_title：Journal of medicinal chemistry

authors： Suchaud V,Bailly F,Lion C,Calmels C,Andréola ML,Christ F,Debyser Z,Cotelle P

更新日期：2014-06-12 00:00:00

abstract：:A common dichotomy exists in inhibitor design: should the compounds be designed to block the enzymes of animals in the preclinical studies or to inhibit the human enzyme? We report that a single mutation of Leu-337 in rat neuronal nitric oxide synthase (nNOS) to His makes the enzyme resemble human nNOS more than rat n...

journal_title：Journal of medicinal chemistry

authors： Fang J,Ji H,Lawton GR,Xue F,Roman LJ,Silverman RB

更新日期：2009-07-23 00:00:00

abstract：:Eight novel single amino acid (6-11) and dipeptide (12, 13) tyrosine P-O esters of cyclic cidofovir ((S)-cHPMPC, 4) and its cyclic adenine analogue ((S)-cHPMPA, 3) were synthesized and evaluated as prodrugs. In vitro IC(50) values for the prodrugs (<0.1-50 μM) vs vaccinia, cowpox, human cytomegalovirus, and herpes sim...

journal_title：Journal of medicinal chemistry

authors： Zakharova VM,Serpi M,Krylov IS,Peterson LW,Breitenbach JM,Borysko KZ,Drach JC,Collins M,Hilfinger JM,Kashemirov BA,McKenna CE

更新日期：2011-08-25 00:00:00

abstract：:G protein-coupled receptors (GPCRs) are the largest family of cell surface receptors and major targets for drug development. Herein, we sought to identify the regions of the human angiotensin II (AngII) type 1 (hAT(1)) receptor binding cleft that interact with all positions of the AngII using photoaffinity labeling. W...

journal_title：Journal of medicinal chemistry

authors： Fillion D,Lemieux G,Basambombo LL,Lavigne P,Guillemette G,Leduc R,Escher E

更新日期：2010-03-11 00:00:00

abstract：:New, racemic, tricyclic trioxane alcohol 3 was designed and synthesized as a structurally simple analog of clinically useful, tetracyclic, antimalarial artemisinin. A series of 20 ester and ether derivatives of alcohol 3 were prepared easily, without destruction of the essential trioxane system. Chemical structure-ant...

journal_title：Journal of medicinal chemistry

authors： Posner GH,Oh CH,Gerena L,Milhous WK

更新日期：1992-06-26 00:00:00

abstract：:A series of both aliphatic and aromatic amides and aromatic amidines derived from 2-amino-1,10-phenanthroline (3) according to the Topliss scheme were synthesized and subsequently tested for antimycoplasmal potency. Although the compounds themselves showed no activity, in the presence of a nontoxic copper concentratio...

journal_title：Journal of medicinal chemistry

authors： de Zwart MA,Bastiaans HM,van der Goot H,Timmerman H

更新日期：1991-03-01 00:00:00

abstract：:A series of 2,6- and 2,4-dihydroxyphenyl alkyl ketones has been investigated as inhibitors of hepatic microsomal aniline hydroxylase and aminopyrine demethylase activities. Structural alterations in both series did little to enhance the inhibitory activity of the parent compounds 2,6-dihydroxyacetophenone (3) and 2,4-...

journal_title：Journal of medicinal chemistry

authors： Bobik A,Holder GM,Ryan AJ

更新日期：1977-09-01 00:00:00

abstract：:Adenosine receptor-binding profiles in rat brain tissues and antihypertensive effects in spontaneously hypertensive rats (SHR) of a series of 2-(cycloalkylalkynyl)adenosines (2-CAAs) and their congeners are described. The structure-activity relationship of this series of compounds is discussed, focusing on the length ...

journal_title：Journal of medicinal chemistry

authors： Abiru T,Miyashita T,Watanabe Y,Yamaguchi T,Machida H,Matsuda A

更新日期：1992-06-12 00:00:00

abstract：:Tumor suppressor protein, p53, is an intracellular protein that is critical within the biochemical cascade that leads to cell death via apoptosis. Recent studies identified the tetrahydrobenzothiazole analogue, pifithrin-alpha (2), as a p53 inhibitor that was effective in protecting neuronal cells against a variety of...

journal_title：Journal of medicinal chemistry

authors： Zhu X,Yu QS,Cutler RG,Culmsee CW,Holloway HW,Lahiri DK,Mattson MP,Greig NH

更新日期：2002-11-07 00:00:00

abstract：:Dihydropyrimidinones such as compound 12 exhibited high binding affinity and subtype selectivity for the cloned human alpha(1a) receptor. Systematic modifications of 12 led to identification of highly potent and subtype-selective compounds such as (+)-30 and (+)-103, with high binding affinity (K(i) = 0.2 nM) for alph...

journal_title：Journal of medicinal chemistry

authors： Nagarathnam D,Miao SW,Lagu B,Chiu G,Fang J,Murali Dhar TG,Zhang J,Tyagarajan S,Marzabadi MR,Zhang F,Wong WC,Sun W,Tian D,Wetzel JM,Forray C,Chang RS,Broten TP,Ransom RW,Schorn TW,Chen TB,O'Malley S,Kling P,Sch

更新日期：1999-11-18 00:00:00

abstract：:Using easily accessible keto-trioxanes 7a-g as the starting materials, a series of new variously functionalized 1,2,4-trioxanes 10-36 have been prepared and evaluated for antimalarial activity against multi-drug-resistant Plasmodium yoelii nigeriensis in mice in the dose range of 24 mg/kg x 4 days to 96 mg/kg x 4 days...

journal_title：Journal of medicinal chemistry

authors： Singh C,Malik H,Puri SK

更新日期：2006-05-04 00:00:00

abstract：:Avermectins A2a, B1a, and B2a (1, 2, and 3) were acetylated to give 4"- and 23-acetates 4 and 5 and 4",23-diacetate 6 from 1, the 4"-and 5-acetates 7 and 8 and 4",5-diacetate 9 from 2, and triacetate 10 from 3. Structure proof by 300-MHz 1H NMR and mass spectral fragmentation is discussed for 10. Forcing acetylation c...

journal_title：Journal of medicinal chemistry

authors： Mrozik H,Eskola P,Fisher MH,Egerton JR,Cifelli S,Ostlind DA

更新日期：1982-06-01 00:00:00

abstract：:The limited number of drug classes licensed for treatment of influenza virus (Flu), together with the continuous emergence of viral variants and drug resistant mutants, highlights the urgent need to find antivirals with novel mechanisms of action. In this context, the viral RNA-dependent RNA polymerase (RdRP) subunits...

journal_title：Journal of medicinal chemistry

authors： Massari S,Nannetti G,Goracci L,Sancineto L,Muratore G,Sabatini S,Manfroni G,Mercorelli B,Cecchetti V,Facchini M,Palù G,Cruciani G,Loregian A,Tabarrini O

更新日期：2013-12-27 00:00:00

abstract：:Hydroxyurea, hydroxyguanidine, and some thiosemicarbazones have been shown to have anticancer and antiviral activities. One of their possible sites of action is the enzyme ribonucleotide reductase (RR). Combination of the structural features of these compounds led to the design and synthesis of the Schiff bases of N-h...

journal_title：Journal of medicinal chemistry

authors： T'ang A,Lien EJ,Lai MM

更新日期：1985-08-01 00:00:00

abstract：:HCV infection affects more than 170 million people worldwide and many of those patients will reach the end stage complications of the disease which include hepatocarcinoma and liver failure. The success rate for treatment of patients infected with genotype-1 is about 40%. Therefore, novel treatments are needed to comb...

journal_title：Journal of medicinal chemistry

authors： Velázquez F,Sannigrahi M,Bennett F,Lovey RG,Arasappan A,Bogen S,Nair L,Venkatraman S,Blackman M,Hendrata S,Huang Y,Huelgas R,Pinto P,Cheng KC,Tong X,McPhail AT,Njoroge FG

更新日期：2010-04-22 00:00:00

abstract：:The cyclopropyl compounds (Z)- and (E)-2-amino-2,3-methano-4-phosphonobutanoic acid, 5 and 6, respectively, were prepared as constrained analogues of 2-amino-4-phosphonobutanoic acid (AP4), a selective glutamate receptor ligand. A Horner-Emmons reaction of trimethyl N-(benzyloxycarbonyl)phosphonoglycinate with 2-(diet...

journal_title：Journal of medicinal chemistry

authors： Kroona HB,Peterson NL,Koerner JF,Johnson RL

更新日期：1991-05-01 00:00:00

abstract：:A series of pyridinyltetrahydropyridine derivatives was synthesized and evaluated as adrenoceptor and tetrabenazine antagonists. 4-(3-Fluoro-2-pyridinyl)-1,2,5,6-tetrahydropyridine proved to be the most potent and selective alpha 2-adrenoceptor antagonist of the series as measured in vitro by displacement of [3H]cloni...

journal_title：Journal of medicinal chemistry

authors： Saari WS,Halczenko W,Huff JR,Guare JP Jr,Hunt CA,Randall WC,Lotti VJ,Yarbrough GG

更新日期：1984-09-01 00:00:00

abstract：:The simulated binding profiles of acetylcholine, ACh, and the inhibitor (+/-)-2,3-dihydro-5,6- dimethoxy-2-[[1-(phenylmethyl)-4-piperidinyl]methyl]-1H-inden-1-on e hydrochloride (E2020), 1, and some of its analogs to acetylcholinesterase, AChE, were determined using full force field energetics and allowing complete co...

journal_title：Journal of medicinal chemistry

authors： Inoue A,Kawai T,Wakita M,Iimura Y,Sugimoto H,Kawakami Y

更新日期：1996-10-25 00:00:00

abstract：:Mercaptopurine (6-MP), thioguanine (6-TG), and azathioprine (AZA) are purine antimetabolites introduced as anticancer or immunosuppressive drugs decades ago. Methylated AZA, called MAZA, is among the investigational drugs. The present study compares MAZA to the widely recognized drugs AZA, 6-MP, and 6-TG with respect ...

journal_title：Journal of medicinal chemistry

authors： Hoffmann M,Chrzanowska M,Hermann T,Rychlewski J

更新日期：2005-06-30 00:00:00

abstract：:Since the discovery of 2'-fluoro-5-methyl-beta-L-arabinofuranosyluracil (L-FMAU) as a potent anti-HBV and anti-EBV agent, we have studied the structure-activity relationships of 2'-deoxy-2'-fluoro-beta-L-arabinofuranosylpyrimidine nucleosides as anti-HBV agents. Therefore it is rational to extend this study to the pur...

journal_title：Journal of medicinal chemistry

authors： Ma T,Lin JS,Newton MG,Cheng YC,Chu CK

更新日期：1997-08-15 00:00:00

abstract：:In this study, a new series of more than 60 quinoline derivatives has been synthesized and evaluated against Mycobacterium tuberculosis (H37Rv). Apart from the SAR exploration around the initial hits, the optimization process focused on the improvement of the physicochemical properties, cytotoxicity, and metabolic sta...

journal_title：Journal of medicinal chemistry

authors： Pitta E,Rogacki MK,Balabon O,Huss S,Cunningham F,Lopez-Roman EM,Joossens J,Augustyns K,Ballell L,Bates RH,Van der Veken P

更新日期：2016-07-28 00:00:00

abstract：:Protein lysine methyltransferase G9a plays key roles in the transcriptional repression of a variety of genes via dimethylation of lysine 9 on histone H3 (H3K9me2) of chromatin as well as dimethylation of nonhistone proteins including tumor suppressor p53. We previously reported the discovery of UNC0321 (3), the most p...

journal_title：Journal of medicinal chemistry

authors： Liu F,Barsyte-Lovejoy D,Allali-Hassani A,He Y,Herold JM,Chen X,Yates CM,Frye SV,Brown PJ,Huang J,Vedadi M,Arrowsmith CH,Jin J

更新日期：2011-09-08 00:00:00

abstract：:The superior activity of N-(2-chloroethyl)-N'-(trans-4-methylcyclohexyl)-N-nitrosourea (MeCCNU) against advanced murine Lewis lung carcinoma in comparisons with the cis form and other nitrosoureas prompted the synthesis of a number of MeCCNU analogues, including several cis-trans pairs. The methyl group was replaced b...

journal_title：Journal of medicinal chemistry

authors： Johnston TP,McCaleb GS,Clayton SD,Frye JL,Krauth CA,Montgomery JA

更新日期：1977-02-01 00:00:00

abstract：:Retinoic acid receptor-related orphan receptor γt (RORγt) is a nuclear receptor associated with the pathogenesis of autoimmune diseases. Allosteric inhibition of RORγt is conceptually new, unique for this specific nuclear receptor, and offers advantages over traditional orthosteric inhibition. Here, we report a highly...

journal_title：Journal of medicinal chemistry

authors： Meijer FA,Doveston RG,de Vries RMJM,Vos GM,Vos AAA,Leysen S,Scheepstra M,Ottmann C,Milroy LG,Brunsveld L

更新日期：2020-01-09 00:00:00

abstract：:The Keap1 (Kelch-like ECH-associated protein 1)-Nrf2 (nuclear factor erythroid 2-related factor 2)-ARE (antioxidant response element) pathway is the major defending mechanism against oxidative stresses, and directly disrupting the Keap1-Nrf2 protein-protein interaction (PPI) has been an attractive strategy to target o...

journal_title：Journal of medicinal chemistry

authors： Zhou HS,Hu LB,Zhang H,Shan WX,Wang Y,Li X,Liu T,Zhao J,You QD,Jiang ZY

更新日期：2020-10-08 00:00:00