Evidence map›Paper›PMID 31455964›Full record

ArticleOrganic & biomolecular chemistry2019

Z-isomerization of retinoids through combination of monochromatic photoisomerization and metal catalysis.

Shirin Kahremany, Christopher Lane Sander, Gregory P Tochtrop, Adam Kubas, Krzysztof Palczewski

Abstract read
In one paragraph

Article in Organic & biomolecular chemistry, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
–field-weighted citation impact
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

4 citing papers in PubMed.

  1. Visible-Light Mediated Activation of 1,3-Dienes and Allenes via Energy Transfers.Chemistry (Weinheim an der Bergstrasse, Germany) · 2025
    Review
  2. Review
  3. Theoretical Study of the Photoisomerization Mechanism of All-The journal of physical chemistry. A · 2021
    Article
  4. Review
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

5 authors.

Shirin KahremanyGavin Herbert Eye Institute and the Department of Ophthalmology, University of California, Irvine, California 92697, USA. kpalczew@uci.edu skahrema@uci.edu.ORCID 0000-0001-5213-2599
Christopher Lane SanderGavin Herbert Eye Institute and the Department of Ophthalmology, University of California, Irvine, California 92697, USA. kpalczew@uci.edu skahrema@uci.edu and Department of Pharmacology, Case Western Reserve University, Cleveland, Ohio 44106, USA.ORCID 0000-0002-1680-6637
Gregory P TochtropDepartment of Chemistry, Case Western Reserve University, Cleveland, Ohio 44106, USA.
Adam KubasInstitute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland. akubas@ichf.edu.pl.ORCID 0000-0002-5508-0533
Krzysztof PalczewskiGavin Herbert Eye Institute and the Department of Ophthalmology, University of California, Irvine, California 92697, USA. kpalczew@uci.edu skahrema@uci.edu.ORCID 0000-0002-0788-545X

Funding

STRUCTURAL STUDIES OF ARRESTINSR01EY009339 · NEI · UNIVERSITY OF WASHINGTON · PI KISER, PHILIP DAVID, PALCZEWSKI, KRZYSZTOF · 1992 to 2025
$16.0M
Novel therapies to inhibit Diabetic RetinopathyR24EY024864 · NEI · UNIVERSITY OF CALIFORNIA-IRVINE · PI KERN, TIMOTHY S · 2015 to 2019
$8.1M
Use of systems pharmacology to prevent rod and cone photoreceptor degenerationR24EY027283 · NEI · UNIVERSITY OF CALIFORNIA-IRVINE · PI PALCZEWSKI, KRZYSZTOF · 2017 to 2021
$7.9M
NEI NIH HHS R01 EY009339NEI NIH HHS R24 EY024864NEI NIH HHS R24 EY027283
6 · The paper itself

Abstract

Catalytic Z-isomerization of retinoids to their thermodynamically less stable Z-isomer remains a challenge. In this report, we present a photochemical approach for the catalytic Z-isomerization of retinoids using monochromatic wavelength UV irradiation treatment. We have developed a straightforward approach for the synthesis of Z-retinoids in high yield, overcoming common obstacles normally associated with their synthesis. Calculations based on density functional theory (DFT) have allowed us to correlate the experimentally observed Z-isomer distribution of retinoids with the energies of chemically important intermediates, which include ground- and excited-state potential energy surfaces. We also demonstrate the application of the current method by synthesizing gram-scale quantities of 9-cis-retinyl acetate 9Z-a. Operational simplicity and gram-scale ability make this chemistry a very practical solution to the problem of Z-isomer retinoid synthesis.

Indexed as

CatalysisCoordination ComplexesDensity Functional TheoryIridiumMolecular StructurePhotochemical ProcessesRetinoidsStereoisomerismUltraviolet RaysCoordination ComplexesIridiumRetinoids

Identifiers

PMID31455964
PMCPMC6739180

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Registered trials

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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.