Abstract:
:Two-bivalent ligands (P-X-P) containing the beta-naltrexamine pharmacophore (P) and a connecting oligoethylene glycol spanner (X) were synthesized and evaluated for narcotic antagonistic activity in the guinea pig ileum (GPI) and mouse vas deferens (MVD). The bivalent ligand 2 whose spanner contains three ethylene units possessed 10-fold greater antagonistic potency than its monovalent analogue (4) in antagonizing the effects of ethylketazocine (EK) on the GPI, while no differential antagonism of morphine was observed among the compounds. In the MVD, 2 was not substantially more potent than 4 as an antagonist against [D-Ala2,D-Leu5]enkephalin (DADLE). The bivalent ligand 3, whose spanner contains six ethylene units, exhibited 15 times greater potency in antagonizing the agonist effects of DADLE on the MVD than its monovalent ligand 4. No marked increase in the ability of 3 to antagonize the effects of morphine or EK on the GPI was observed. The data indicate that mu, kappa, and delta opioid receptors exhibit different selectivity toward bivalent ligands whose spanner lengths differ. The enhanced potency associated with different receptor interactions is consistent with simultaneous occupation of proximal recognition sites. Whether such proximal recognition sites are identical or different remains to be clarified. The distance between proximal sites appears to depend on the opioid receptor subtype involved.
journal_name
J Med Chemjournal_title
Journal of medicinal chemistryauthors
Erez M,Takemori AE,Portoghese PSdoi
10.1021/jm00349a016subject
Has Abstractpub_date
1982-07-01 00:00:00pages
847-9issue
7eissn
0022-2623issn
1520-4804journal_volume
25pub_type
杂志文章abstract::We have reported the preparation and anticancer evaluation of certain 4-anilinofuro[2,3-b]quinolines. However, drawbacks such as lack of selective cytotoxicity, poor oral bioavailability, and poor water solubility exhibited by these compounds prompted us to search for newer derivatives. Among them, (E)-1-(4-(furo[2,3-...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm200046z
更新日期:2011-07-14 00:00:00
abstract::We present Fleksy, a new approach to consider both ligand and receptor flexibility in small molecule docking. Pivotal to our method is the use of a receptor ensemble to describe protein flexibility. To construct these ensembles, we use a backbone-dependent rotamer library and implement the concept of interaction sampl...
journal_title:Journal of medicinal chemistry
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journal_title:Journal of medicinal chemistry
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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
pub_type: 杂志文章
doi:10.1021/jm2001426
更新日期:2011-08-25 00:00:00
abstract::A series of 3-thioindolamidines (and 3-indolamidines) related to mixidine (1) was studied for cardiac-slowing properties, following the discovery of activity for prototype thioindole 2. Structure-activity relationships were explored, leading to many potent antitachycardiac agents (6-9, 12, 13, 15-17, 20, 23, 24, 30, 3...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm00356a021
更新日期:1983-02-01 00:00:00
abstract::The novel coronavirus disease COVID-19 that emerged in 2019 is caused by the virus SARS CoV-2 and named for its close genetic similarity to SARS CoV-1 that caused severe acute respiratory syndrome (SARS) in 2002. Both SARS coronavirus genomes encode two overlapping large polyproteins, which are cleaved at specific sit...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/acs.jmedchem.0c01063
更新日期:2020-11-12 00:00:00
abstract::A series of tetrahydropyranyl (THP) derivatives has been developed as potent inhibitors of isoprenylcysteine carboxyl methyltransferase (ICMT) for use as anticancer agents. Structural modification of the submicromolar hit compound 3 led to the potent 3-methoxy substituted analogue 27. Further SAR development around th...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm200249a
更新日期:2011-07-28 00:00:00
abstract::A number of bis(diazeniumdiolates) that we designed to release up to 4 mol of nitric oxide (NO) and that are structural analogues of the NO prodrug and anticancer lead compound O(2)-{2,4-dinitro-5-[4-(N-methylamino)benzoyloxy]phenyl} 1-(N,N-dimethylamino)diazen-1-ium-1,2- diolate (PABA/NO) were synthesized and studied...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm800831y
更新日期:2008-12-25 00:00:00
abstract::The influence of structure on DT-diaphorase substrate activity, topoisomerase II inhibition activity, and DNA reductive alkylation was studied for the 6-aziridinylpyrrolo[1,2-alpha]benzimidazolequinones (PBIs) and the 6-acetamidopyrrolo[1,2-alpha]benzimidazolequinones (APBIs). The PBIs are reductively activated by DT-...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm960546p
更新日期:1997-04-25 00:00:00
abstract::A noninvasive topical ocular therapy for the treatment of neovascular or "wet" age-related macular degeneration would provide a patient administered alternative to the current standard of care, which requires physician administered intravitreal injections. This manuscript describes a novel strategy for the use of in v...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/acs.jmedchem.7b01731
更新日期:2018-02-22 00:00:00
abstract::Pancreatic ductal adenocarcinoma (PDAC) is an aggressive disease with poor prognosis and limited therapeutic options. Therefore, there is an urgent need to identify new, safe, and targeted therapeutics for effective treatment of late as well as early stage disease. Plectin-1 (Plec-1) was recently identified as specifi...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/acs.jmedchem.5b01571
更新日期:2016-06-09 00:00:00
abstract::Some 2-aryloxymethyl-2,3,5,6-tetrahydro-1,4-oxazines have been shown to possess marked antidepressant activity. The 1,4-oxazines were synthesized by lithium aluminum hydride reduction of the readily available 6-aryloxymethyl-2,3,5,6-tetrahydro-1,4-oxazin-3-ones. High antidepressant activity was associated with ortho s...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm00240a009
更新日期:1975-06-01 00:00:00
abstract::Necrosis is the main mode of cell death, which leads to multiple clinical conditions affecting hundreds of millions of people worldwide. Its molecular mechanisms are poorly understood, hampering therapeutics development. Here, we identify key proteolytic activities essential for necrosis using various biochemical appr...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/acs.jmedchem.0c01683
更新日期:2021-01-31 00:00:00
abstract::S1P5 is one of 5 receptors for sphingosine-1-phosphate and is highly expressed on endothelial cells within the blood-brain barrier, where it maintains barrier integrity in in vitro models (J. Neuroinflamm. 2012, 9, 133). Little more is known about the effects of S1P5 modulation due to the absence of tool molecules wit...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/acs.jmedchem.5b00928
更新日期:2015-12-10 00:00:00
abstract::A series of 6-beta-thiosaccharide analogues of morphine-6-glucuronide (M6G) and codeine-6-glucuronide (C6G) were synthesized and evaluated with the objective of preparing an analogue of M6G with improved biological activity. The affinity of the thiosaccharide analogues of M6G and C6G was examined by competitive bindin...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm049554t
更新日期:2004-11-04 00:00:00
abstract::Replacing the 1alpha-OH group of the natural hormone 1alpha,25-dihydroxyvitamin D(3) (calcitriol) by a 1alpha-CHF(2) group and incorporating a potentiating side chain produced two new hybrid analogs 6 and 7. Both of these two hybrid analogs are as transcriptionally active as calcitriol and are strongly antiproliferati...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm0609925
更新日期:2006-12-14 00:00:00
abstract::Ionotropic glutamate receptors (iGluRs) constitute a family of ligand-gated ion channels that are essential for mediating fast synaptic transmission in the central nervous system. This study presents a high-resolution X-ray structure of the competitive antagonist (S)-2-amino-3-[5-tert-butyl-3-(phosphonomethoxy)-4-isox...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm020989v
更新日期:2003-01-16 00:00:00
abstract::The concept of bioisosterism between benzimidazole and catechol was applied to the design and synthesis of benzimidazole analogues of norepinephrine, (R,S)-1-[5(6)-benzimidazolyl]-2-aminoethanol (2), and of isoproterenol, (R,S)-1-[5(6)-benzimidazolyl]-2-isopropylaminoethanol (4). Compound 2 was shown to be a partial b...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm00199a013
更新日期:1978-01-01 00:00:00
abstract::A promising strategy for selecting synthetic targets is similarity-based searching of very large "virtual libraries", which comprise all structures accessible by linking two or three commercially available building blocks with combinatorial syntheses. To assess the general applicability of this strategy, leading struc...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm000003m
更新日期:2000-05-04 00:00:00
abstract::Several new phospholipid-ara-C conjugates have been prepared and tested as prodrugs of the parent ara-C. The new derivative include ara-CMP-L-dipalmitin, ara-CDP-L-distearin, ara-CDP-L dimyristin, ara-CDP-L-diolein, and the radioactively labeled derivative ara-CDP-L-di[1-14C]palmitin. In addition, the unusually stable...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm00353a010
更新日期:1982-11-01 00:00:00
abstract::Multidrug resistance-associated protein 1 (MRP1/ABCC1) is a very promiscuous transporter. Herein we used topological polar surface area (TPSA), a descriptor defined as the sum of surfaces of polar atoms in a molecule, to analyze drug transport by MRP1. We suggested that compounds with high TPSA are transported while t...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm801389m
更新日期:2009-02-26 00:00:00
abstract::Several pairs of cannabinoid isomers were synthesized and tested for psychotropic activity in rhesus monkeys. Two regularities were observed: (a) In the absence of the other substituents, the equatorial stereochemistry of the substituent at C-1 determines activity. (b) Two groups of THC-type cannabinoids which differ ...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm00184a002
更新日期:1980-10-01 00:00:00
abstract::Various substituted isoquinoline-1-carboxaldehyde thiosemicarbazones (12 compounds) have been synthesized and evaluated for antineoplastic activity in mice bearing the L1210 leukemia. Condensation of 4-bromo-1-methylisoquinoline (4) with ammonium hydroxide, methylamine, ethylamine, and N-acetylethylenediamine gave the...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm00021a012
更新日期:1995-10-13 00:00:00
abstract::A series of 4-amino[1,2,4]triazolo[4,3-a]quinoxalines has been prepared. Many compounds from this class reduce immobility in Porsolt's behavioral despair model in rats upon acute administration and may therefore have therapeutic potential as novel and rapid acting antidepressant agents. Optimal activity in this test i...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm00170a031
更新日期:1990-08-01 00:00:00
abstract::A series of amide analogues of the 2,2'-dithiobis(1H-indole-3-alkaonic acid) class of tyrosine kinase inhibitors have been prepared, by reaction of 1H-indole-3-alkanamides (8) with S2Cl2, and separation of the desired disulfides from the initial mixtures of mono-, di-, and trisulfides formed. These amides were evaluat...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm00031a009
更新日期:1994-03-04 00:00:00
abstract::A series of commercial phenyl-, heteroaryl-, alkyl-, and alkenylboronic acids were evaluated for their FAAH and MGL inhibitory activities. The compounds were generally selective for FAAH, with IC50 in the nanomolar or low-micromolar range. Eight of these compounds inhibited MGL with IC50 in the micromolar range. The m...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm801051t
更新日期:2008-11-27 00:00:00
abstract::As part of a program aimed at the discovery of antinociceptive therapy for inflammatory conditions, a screening hit was found to inhibit microsomal prostaglandin E synthase-1 (mPGES-1) with an IC50 of 17.4 μM. Structural information was used to improve enzyme potency by over 1000-fold. Addition of an appropriate subst...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/acs.jmedchem.5b01249
更新日期:2016-01-14 00:00:00
abstract::Membrane-associated serine protease matriptase has been implicated in human diseases and might be a drug target. In the present study, a novel class of matriptase inhibitors targeting zymogen activation is developed by a combination of the screening of compound library using a cell-based matriptase activation assay an...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm200920s
更新日期:2011-11-10 00:00:00
abstract::A comprehensive herbal medicine information system for cancer (CHMIS-C) has been developed. The current version of the database integrates information on more than 200 anticancer herbal recipes that have been used for the treatment of different types of cancer in clinic, 900 individual ingredients, and 8500 small orga...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm049838d
更新日期:2005-03-10 00:00:00
abstract::Glucose-dependent insulinotropic polypeptide (GIP) is a physiological insulin releasing peptide. We have developed two novel fatty acid derivatized GIP analogues, which bind to serum albumin and demonstrate enhanced duration of action in vivo. GIP(Lys(16)PAL) and GIP(Lys(37)PAL) were resistant to dipeptidyl peptidase ...
journal_title:Journal of medicinal chemistry
pub_type: 杂志文章
doi:10.1021/jm0509997
更新日期:2006-02-09 00:00:00