Evidence map›Paper›PMID 14584948›Full record

ArticleJournal of medicinal chemistry2003

2-Substitution of adenine nucleotide analogues containing a bicyclo[3.1.0]hexane ring system locked in a northern conformation: enhanced potency as P2Y1 receptor antagonists.

Hak Sung Kim, Michihiro Ohno, Bin Xu, Hea Ok Kim, Yongseok Choi, Xiao D Ji, Savitri Maddileti, Victor E Marquez, T Kendall Harden, Kenneth A Jacobson

Open access · greenAbstract read
In one paragraph

Article in Journal of medicinal chemistry, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 64 papers.

0numbers the graph read from it
0cells of the map it votes in
64citing papers in PubMed
3.2field-weighted citation impact, top 9% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

64 citing papers in PubMed, 127 citations in OpenAlex.

  1. Advances in nucleotide-based P2Y₁ antagonism: implications for cardiovascular therapeutics.Medicinal chemistry research : an international journal for rapid communications on design and mechanisms of action of biologically active agents · 2026
    Review
  2. Review
  3. Design and Pharmacological Characterization of a Novel Antithrombotic P2YInternational journal of molecular sciences · 2025
    Article
  4. Review
  5. Exploring bias in platelet P2YBritish journal of pharmacology · 2024
    Review
  6. Article
  7. Article
  8. Targeting the P2YAmerican journal of respiratory and critical care medicine · 2022
    Article
  9. Review
  10. Purinergic Receptors Crosstalk with CCR5 to Amplify CaCellular and molecular neurobiology · 2021
    Article
  11. Review
  12. Review
  13. Astrocytes Modulate Baroreflex Sensitivity at the Level of the Nucleus of the Solitary Tract.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2020
    Article
  14. The role of purinergic P2YPurinergic signalling · 2020
    Article
  15. Article
  16. P2YPurinergic signalling · 2018
    Article
  17. Article
  18. Demystifying P2YJournal of chemical information and modeling · 2017
    Article
  19. Article
  20. Article

4 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors at 1 institution in 1 country.

Hak Sung KimMolecular Recognition Section, Laboratory of Bioorganic Chemistry, NIDDK, National Institutes of Health, Department of Health and Human Services, Bethesda, Maryland 20892-0810, USA.
Michihiro Ohno
Bin Xu
Hea Ok Kim
Yongseok Choi
Xiao D Ji
Savitri Maddileti
Victor E Marquez
T Kendall Harden
Kenneth A Jacobson
National Institutes of Health · US

Funding

P2Y-PURINERGIC RECEPTORSR01GM038213 · NIGMS · UNIV OF NORTH CAROLINA CHAPEL HILL · PI HARDEN, T KENDALL · 1987 to 2012
$3.9M
P2T PURINERGIC RECEPTORSR01HL054889 · NHLBI · UNIVERSITY OF NORTH CAROLINA CHAPEL HILL · PI BOYER, JOSE L · 2001 to 2004
$1.0M
PROSTHETIC GROUPS FOR RADIOLABELING OF FUNCTIONALIZED DRUGS AND PEPTIDESZ01DK031116 · NIDDK · NATIONAL INSTITUTE OF DIABETES AND DIGESTIVE AND KIDNEY DISEASES · PI JACOBSON, KENNETH ALAN · 1991 to 2008
$769k
CYCLOPENTENYL NUCLEOSIDE ISOSTERES AS POTENTIAL ANTITUMOR AND ANTIVIRAL AGENTSZ01BC006174 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI MARQUEZ, VICTOR · 1996 to 2008
$635k
P2T-PURINERGIC RECEPTORSR29HL054889 · NHLBI · UNIVERSITY OF NORTH CAROLINA CHAPEL HILL · PI BOYER, JOSE L · 1995 to 1999
–
Intramural NIH HHS Z01 DK031116NHLBI NIH HHS HL54889NHLBI NIH HHS R01 HL054889NHLBI NIH HHS R29 HL054889NIGMS NIH HHS GM38213NIGMS NIH HHS R01 GM038213
6 · The paper itself

Abstract

Preference for the northern (N) ring conformation of the ribose moiety of adenine nucleotide 3',5'-bisphosphate antagonists of P2Y(1) receptors was established by using a ring-constrained methanocarba (a bicyclo[3.1.0]hexane) ring as a ribose substitute (Nandanan et al. J. Med. Chem. 2000, 43, 829-842). We have now combined the ring-constrained (N)-methanocarba modification with other functionalities at the 2-position of the adenine moiety. A new synthetic route to this series of bisphosphate derivatives was introduced, consisting of phosphorylation of the pseudoribose moiety prior to coupling with the adenine base. The activity of the newly synthesized analogues was determined by measuring antagonism of 2-methylthio-ADP-stimulated phospholipase C (PLC) activity in 1321N1 human astrocytoma cells expressing the recombinant human P2Y(1) receptor and by using the radiolabeled antagonist [(3)H]2-chloro-N(6)-methyl-(N)-methanocarba-2'-deoxyadenosine 3',5'-bisphosphate 5 in a newly developed binding assay in Sf9 cell membranes. Within the series of 2-halo analogues, the most potent molecule at the hP2Y(1) receptor was an (N)-methanocarba N(6)-methyl-2-iodo analogue 12, which displayed a K(i) value in competition for binding of [(3)H]5 of 0.79 nM and a K(B) value of 1.74 nM for inhibition of PLC. Thus, 12 is the most potent antagonist selective for the P2Y(1) receptor yet reported. The 2-iodo group was substituted with trimethyltin, thus providing a parallel synthetic route for the introduction of an iodo group in this high-affinity antagonist. The (N)-methanocarba-2-methylthio, 2-methylseleno, 2-hexyl, 2-(1-hexenyl), and 2-(1-hexynyl) analogues bound less well, exhibiting micromolar affinity at P2Y(1) receptors. An enzymatic method of synthesis of the 3',5'-bisphosphate from the corresponding 3'-monophosphate, suitable for the preparation of a radiophosphorylated analogue, was explored.

Indexed as

Purinergic P2 Receptor AntagonistsAdenine NucleotidesAdenosine DiphosphateBinding, CompetitiveCell LineCell Line, TumorHumansMolecular ConformationRadioligand AssayReceptors, Purinergic P2Receptors, Purinergic P2Y1Recombinant ProteinsStereoisomerismStructure-Activity Relationship4-(2-iodo-6-methylaminopurin-9-yl)-1-((phosphato)methyl)-2-(phosphato)bicyclo(3.1.0)hexaneAdenine NucleotidesAdenosine DiphosphateP2RY1 protein, humanPurinergic P2 Receptor AntagonistsReceptors, Purinergic P2Receptors, Purinergic P2Y1Recombinant Proteins

Identifiers

PMID14584948
PMCPMC3408611
OpenAlexW2022658237

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.