共查询到20条相似文献,搜索用时 31 毫秒
1.
Smith G Mikkelsen G Eskildsen J Bundgaard C 《Bioorganic & medicinal chemistry letters》2006,16(15):3981-3984
Elevation of glycine levels by inhibition of the glycine transporter-1 (GlyT-1) and activation of the NMDA receptor is a potential strategy for the treatment of schizophrenia. A novel series of 2-arylsulfanylphenyl-1-oxyalkyl amino acids have been identified. The most prominent member of this series S-1-{2-[3-(3-fluoro-phenylsulfanyl)biphenyl-4-yloxy]ethyl}pyrrolidine-2-carboxylic acid (38) is a potent GlyT-1 inhibitor (IC50=59 nM). In vitro and in vivo assessment of CNS exposure indicates this compound is a likely substrate for active efflux transporters. 相似文献
2.
Smith G Ruhland T Mikkelsen G Andersen K Christoffersen CT Alifrangis LH Mørk A Wren SP Harris N Wyman BM Brandt G 《Bioorganic & medicinal chemistry letters》2004,14(15):4027-4030
Elevation of glycine levels and activation of the NMDA receptor by inhibition of the glycine transporter 1 (GlyT-1) is a potential strategy for the treatment of schizophrenia. A novel series of GlyT-1 inhibitors have been identified containing the 2-arylsulfanyl-phenylpiperazine motif. The most prominent member of this series, (R)-4-[5-chloro-2-(4-methoxy-phenylsulfanyl)-phenyl]-2-methyl-piperazin-1-yl-acetic acid (31) is a potent glycine transporter-1 inhibitor (IC(50)=150 nM), which elevated glycine levels in rat ventral hippocampus as measured by microdialysis in vivo at doses of 1.2-4.6 mg/kg s.c. 相似文献
3.
Christopher L. Cioffi Mark A. Wolf Peter R. Guzzo Kashinath Sadalapure Visweswaran Parthasarathy Dattatraya Dethe Jun-Ho Maeng Edmund Carulli David T.J. Loong Xiao Fang Min Hu Priya Gupta Mark Chung Mei Bai Nick Moore Michele Luche Yuri Khmelnitsky Patrick L. Love Shuang Liu 《Bioorganic & medicinal chemistry letters》2013,23(5):1257-1261
The design, synthesis, and structure–activity relationships (SAR) of a series of N-((1-(4-(propylsulfonyl)piperazin-1-yl)cycloalkyl)methyl)benzamide inhibitors of glycine transporter-1 (GlyT-1) are described. Optimization of the benzamide and central ring components of the core scaffold led to the identification of a GlyT-1 inhibitor that demonstrated in vivo activity in a rodent cerebral spinal fluid (CSF) glycine model. 相似文献
4.
Blunt R Porter R Johns A Nash D Puckey G Wyman P Herdon H Teague S Hadden V Fontana S Gordon L 《Bioorganic & medicinal chemistry letters》2011,21(20):6176-6179
A screening hit was used as the basis for the core structure of a new series of acylglycinamide GlyT-1 inhibitors. Investigation of the SAR around four areas of diversity used facile chemistry to prepare compounds quickly. By focussing on reducing the lipophilicity and improving the aqueous solubility in the series we were able to prepare a compound (17e) with a good level of activity at GlyT-1, selectivity over GlyT-2 and moderate oral bioavailability. 相似文献
5.
Wolin RL Santillán A Tang L Huang C Jiang X Lovenberg TW 《Bioorganic & medicinal chemistry》2004,12(16):4511-4532
A series of benzoylpiperidine analogs related to 4a was prepared, and their ability to inhibit the uptake of [(14)C]-glycine in COS7 cells transfected with human glycine transporter type-2 (GlyT-2) was evaluated. Small structural changes to the benzoylpiperidine region of the molecule led to a significant decrease in GlyT-2 inhibitory activity. In contrast, the distal aryl ring was more tolerant to functional group modifications and could accommodate a variety of substitutes at the C-2 or C-3 positions. Comparable activities to 4a were obtained by replacing the anilino nitrogen with an ether linkage 27 or by exchanging the isopropoxy ether moiety with an isopropyl amino group 15. A distinct preference for a 2-carbon tether (n=1) was observed relative to the corresponding 3-carbon homolog (n=2). 相似文献
6.
McClure KJ Maher M Wu N Chaplan SR Eckert WA Lee DH Wickenden AD Hermann M Allison B Hawryluk N Breitenbucher JG Grice CA 《Bioorganic & medicinal chemistry letters》2011,21(18):5197-5201
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-disubstituted indane derivatives, which had moderate selectivity and potency at HCN1. Optimization of this hit led to the identification of the potent, 1,1-disubstituted cyclohexane HCN1 blocker, 2-ethoxy-N-((1-(4-isopropylpiperazin-1-yl)cyclohexyl)methyl)benzamide. The work leading to the discovery of this compound is described herein. 相似文献
7.
1-Benzyloxy-4,5-dihydro-1H-imidazol-2-yl-amines,a novel class of NR1/2B subtype selective NMDA receptor antagonists 总被引:1,自引:0,他引:1
Alanine A Bourson A Büttelmann B Gill R Heitz MP Mutel V Pinard E Trube G Wyler R 《Bioorganic & medicinal chemistry letters》2003,13(19):3155-3159
Screening of the Roche compound depository led to the identification of (1-benzyloxy-4,5-dihydro-1H-imidazol-2-yl)-butyl amine 4, a structurally novel NR1/2B subtype selective NMDA receptor antagonist. The structure-activity relationships developed in this series resulted in the discovery of a novel class of potent and selective NMDA receptor blockers displaying activity in vivo. 相似文献
8.
Wolin RL Venkatesan H Tang L Santillán A Barclay T Wilson S Lee DH Lovenberg TW 《Bioorganic & medicinal chemistry》2004,12(16):4477-4492
A variety of alpha-amino acid derivatives were prepared as glycine transport inhibitors and their ability to block the uptake of [(14)C]-glycine in COS7 cells transfected with human glycine transporter-2 (hGlyT-2) was evaluated. An array of substituents at the chiral center was studied and overall, L-phenylalanine was identified as the preferred amino acid residue. Compounds prepared from l-amino acids were more potent GlyT-2 inhibitors than analogs derived from the corresponding d-amino acids. Introducing an achiral amino acid such as glycine, or incorporating geminal substitution in the alpha-position, led to a significant reduction in GlyT-2 inhibitory properties. 相似文献
9.
Ho KK Appell KC Baldwin JJ Bohnstedt AC Dong G Guo T Horlick R Islam KR Kultgen SG Masterson CM McDonald E McMillan K Morphy JR Rankovic Z Sundaram H Webb M 《Bioorganic & medicinal chemistry letters》2004,14(2):545-548
Structure-activity studies on benzamide 1 obtained from library screening led to the discovery of a novel series of potent and selective glycine transporter type-2 inhibitors. 相似文献
10.
Two forms of glycine transporter have been described to date, GlyT-1 and GlyT-2. The GlyT-2 form is expressed mainly in the spinal cord, brainstem and cerebellum. Here we describe the identification of a variant form of the human GlyT-2 (SC6), showing three amino acid changes to the previously reported protein. Population analysis identified the allele causing one of the polymorphisms, D463N, at 10% within the population with 3% being homozygous for the change. We also transfected our new variant into mammalian cells and compared it to the published cDNA, showing that the three amino acid changes present have no major effect on the biochemical properties of the transporter. 相似文献
11.
Pharmacological characterization of [³H]CHIBA-3007 binding to glycine transporter 1 in the rat brain
Glycine transporter-1 (GlyT-1) in glial cells regulates extracellular levels of glycine, which acts as an obligatory co-agonist at the N-methyl-D-aspartate (NMDA) receptors in the brain. In the present study, we developed a novel radioligand, [3H]3-chloro-N-((S)-((R)-1-methylpiperidin-2-yl)(thiophen- 3-yl)methyl)-4- (trifluoromethyl)picolinamide ([3H]CHIBA-3007), for studying GlyT-1 in the brain. The presence of a single saturable high-affinity binding component for [3H]CHIBA-3007 binding to the rat brain membranes was detected. Scatchard analysis revealed an apparent equilibrium dissociation constant (Kd) of 1.61±0.16 nM and a maximal number of binding sites (Bmax) of 692.8±22.8 fmol/mg protein (mean ± SEM, n = 3). The specific binding of [3H]CHIBA-3007 was inhibited by a number of GlyT-1 inhibitors, such as CHIBA-3007, desmethyl-CHIBA-3007, CHIBA-3008, SSR504734, NFPS/ALX5407, LY2365109 and , consistent with the pharmacological profiles of GlyT-1 inhibitors. Interestingly, the potency of eight GlyT-1 inhibitors (CHIBA-3007, desmethyl-CHIBA-3007, NFPS/ALX5407, LY2365109, Org24598, SSR504734, sarcosine, and glycine) for blocking in vitro specific binding of [3H]CHIBA-3007 was significantly correlated with the potency of these inhibitors for inhibiting [14C]glycine uptake in the rat brain membranes. In contrast, the GlyT-2 inhibitor ALX1393 exhibited very weak for [3H]CHIBA-3007 binding. Furthermore, the regional distribution of [3H]CHIBA-3007 binding in the rat brain was similar to the previously reported distribution of GlyT-1. The present findings suggest that [3H]CHIBA-3007 would be a useful new radioligand for studying GlyT-1 in the brain. Org24598相似文献
12.
John Liddle Paul Bamborough Michael D. Barker Sebastien Campos Rick P.C. Cousins Geoffrey J. Cutler Heather Hobbs Duncan S. Holmes Chris Ioannou Geoff W. Mellor Mary A. Morse Jeremy J. Payne John M. Pritchard Kathryn J. Smith Daniel T. Tape Caroline Whitworth Richard A. Williamson 《Bioorganic & medicinal chemistry letters》2009,19(9):2504-2508
The synthesis and SAR of a novel series of IKK2 inhibitors are described. Modification around the hinge binding region of the 7-azaindole led to a series of potent and selective inhibitors with good cellular activity. 相似文献
13.
Tamura SY Levy OE Uong TH Reiner JE Goldman EA Ho JZ Cohen CR Bergum PW Nutt RF Brunck TK Semple JE 《Bioorganic & medicinal chemistry letters》2000,10(8):745-749
A novel series of rigid P3-guanylpiperidine peptide mimics 3-14 was designed as potential factor Xa and prothrombinase inhibitors. Incorporation into a P2-gly-P1-argininal motif led to highly potent and selective inhibitors. The synthesis and biological activities of these derivatives are reported herein. 相似文献
14.
Ivar M. McDonald Robert A. Mate F. Christopher Zusi Hong Huang Debra J. Post-Munson Meredith A. Ferrante Lizbeth Gallagher Robert L. Bertekap Ronald J. Knox Barbara J. Robertson David G. Harden Daniel G. Morgan Nicholas J. Lodge Steven I. Dworetzky Richard E. Olson John E. Macor 《Bioorganic & medicinal chemistry letters》2013,23(6):1684-1688
High throughput screening led to the identification of a novel series of quinolone α7 nicotinic acetylcholine receptor (nAChR) agonists. Optimization of an HTS hit (1) led to 4-phenyl-1-(quinuclidin-3-ylmethyl)quinolin-2(1H)-one, which was found to be potent and selective. Poor brain penetrance in this series was attributed to transporter-mediated efflux, which was in turn due to high pKa. A novel 4-fluoroquinuclidine significantly lowered the pKa of the quinuclidine moiety, reducing efflux as measured by a Caco-2 assay. 相似文献
15.
4-Aminoquinolines as a novel class of NR1/2B subtype selective NMDA receptor antagonists 总被引:1,自引:0,他引:1
Pinard E Alanine A Bourson A Büttelmann B Heitz M Mutela Ramanjit Gill V Trube G Wyler R 《Bioorganic & medicinal chemistry letters》2002,12(18):2615-2619
Screening of the Roche compound library led to the identification of 4-aminoquinoline 4 as structurally novel NR1/2B subtype selective NMDA receptor antagonist. The SAR which was developed in this series resulted in the discovery of highly potent and in vivo active blockers. 相似文献
16.
《Bioorganic & medicinal chemistry letters》2014,24(18):4603-4606
We describe the discovery of phenoxymethylbenzamide derivatives as a novel class of glycine transporter type-2 (GlyT-2) inhibitors. We found hit compound 1 (human GlyT-2, IC50 = 4040 nM) in our library and converted its 1-(1-(naphthalen-2-ylmethyl)piperidin-4-yl)pyrrolidin-3-yl group to an 1-(N,N-dimethylaminopropyl)piperidyl group and its tert-butyl group to a trifluoromethyl group to obtain N-(1-(3-(dimethylamino)propyl)piperidin-4-yl)-4-((4-(trifluoromethyl)phenoxy)methyl)benzamide (20). Compound 20 showed good inhibitory activity against human GlyT-2 (IC50 = 15.3 nM) and exhibited anti-allodynia effects in a mouse neuropathic pain model. 相似文献
17.
Park SJ Lim EJ Oh SJ Chung JW Rickman DW Moon JI Chun MH 《Cell and tissue research》2004,315(3):407-412
The FVB/N mouse is a model of retinitis pigmentosa which shows a rapid loss of photoreceptors during early postnatal (P) life. We investigated the cellular localization of glycine transporter 1 (GlyT-1) in the developing FVB/N mouse retina. In control retinas, the developmental pattern of GlyT-1-immunoreactive amacrine cells was well in accordance with a previous report. However, in the FVB/N mouse retina, some GlyT-1-labeled amacrine cells sent their processes into the outer plexiform layer (OPL) from P14 onward. From P21 onward, GlyT-1-labeled cells were visible in the OPL. These cells were further characterized by double-label immunofluorescence experiments with an antiserum against disabled 1 (Dab-1), and showed Dab-1 immunoreactivity, indicating that these cells are putative AII amacrine cells. These results clearly demonstrate that AII amacrine cells have the potential capacity to respond to photoreceptor degeneration by migrating or sprouting their processes into the OPL in the developing FVB/N mouse retina.This study was supported by a Korea Research Foundation Grant (2001, PF0005) from the Ministry of Education 相似文献
18.
Manley PJ Zartman A Paone DV Burgey CS Henze DA Della Penna K Desai R Leitl MD Lemaire W White RB Yeh S Urban MO Kane SA Hartman GD Bilodeau MT Trotter BW 《Bioorganic & medicinal chemistry letters》2011,21(8):2359-2364
A novel series of decahydroquinoline CB2 agonists is described. Optimization of the amide substituent led to improvements in CB2/CB1 selectivity as well as physical properties. Two key compounds were examined in the rat CFA model of acute inflammatory pain. A moderately selective CB2 agonist was active in this model. A CB2 agonist lacking functional CB1 activity was inactive in this model despite high in vivo exposure both peripherally and centrally. 相似文献
19.
Sonja Nordhoff Stephan Bulat Silvia Cerezo-Glvez Oliver Hill Barbara Hoffmann-Enger Meritxell Lpez-Canet Claudia Rosenbaum Christian Rummey Meinolf Thiemann Victor G. Matassa Paul J. Edwards Achim Feurer 《Bioorganic & medicinal chemistry letters》2009,19(22):6340-6345
For a series of β-homophenylalanine based inhibitors of dipeptidyl peptidase IV ADME properties were improved by the incorporation of amide replacements. These efforts led to a novel series of potent and selective inhibitors of DPP-4 that exhibit an attractive pharmacokinetic profile and show excellent efficacy in an animal model of diabetes. 相似文献
20.
Discovery of potent,selective and orally bioavailable imidazo[1,5-a]pyrazine derived ACK1 inhibitors
Meizhong Jin Jing Wang Andrew Kleinberg Mridula Kadalbajoo Kam W. Siu Andrew Cooke Mark A. Bittner Yan Yao April Thelemann Qunsheng Ji Shripad Bhagwat Kristen M. Mulvihill Josef A. Rechka Jonathan A. Pachter Andrew P. Crew David Epstein Mark J. Mulvihill 《Bioorganic & medicinal chemistry letters》2013,23(4):979-984
This Letter describes the medicinal chemistry effort towards a series of novel imidazo[1,5-a]pyrazine derived inhibitors of ACK1. Virtual screening led to the discovery of the initial hit, and subsequent exploration of structure–activity relationships and optimization of drug metabolism and pharmacokinetic properties led to the identification of potent, selective and orally bioavailable ACK1 inhibitors. 相似文献