Evidence map›Paper›PMID 36652728›Full record

ArticleJournal of the American Chemical Society2023

Total Syntheses of Nominal and Actual Prorocentin.

Raphael J Zachmann, Kenzo Yahata, Mira Holzheimer, Maxime Jarret, Cornelia Wirtz, Alois Fürstner

Open access · hybridAbstract read
In one paragraph

Article in Journal of the American Chemical Society, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
4.3field-weighted citation impact, top 5% 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

13 citing papers in PubMed, 29 citations in OpenAlex.

  1. Review
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  3. Total Synthesis of Benthol A: Evidence for a Structure Revision.Journal of the American Chemical Society · 2026
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  8. Selective Ni(I)/Ni(III) Process for Consecutive Geminal C(spJournal of the American Chemical Society · 2024
    Article
  9. The Chemistry of Phytoplankton.Chemical reviews · 2024
    Review
  10. Article
  11. Platinum-Catalyzed Enantioselective Diboration of Monosubstituted Alkenes.Organic syntheses; an annual publication of satisfactory methods for the preparation of organic chemicals · 2024
    Article
  12. Article
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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

6 authors at 1 institution in 1 country.

Raphael J ZachmannMax-Planck-Institut für Kohlenforschung, 45478 Mülheim/Ruhr, Germany.
Kenzo YahataMax-Planck-Institut für Kohlenforschung, 45478 Mülheim/Ruhr, Germany.ORCID 0000-0002-6991-9221
Mira HolzheimerMax-Planck-Institut für Kohlenforschung, 45478 Mülheim/Ruhr, Germany.
Maxime JarretMax-Planck-Institut für Kohlenforschung, 45478 Mülheim/Ruhr, Germany.
Cornelia WirtzMax-Planck-Institut für Kohlenforschung, 45478 Mülheim/Ruhr, Germany.
Alois FürstnerMax-Planck-Institut für Kohlenforschung, 45478 Mülheim/Ruhr, Germany.ORCID 0000-0003-0098-3417
Max-Planck-Institut für Kohlenforschung · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The dinoflagellate-derived polyether prorocentin is a co-metabolite of the archetypical serine/threonine phosphatase inhibitor okadaic acid. Whereas a structural relationship cannot be missed and a biosynthetic link was proposed, it is currently unknown whether there is any parallel in the bioactivity profile of these natural products. However, it was insinuated in the past that the structure assigned to prorocentin might need to be revised. Indeed, re-examination of the published spectra cast doubts as to the constitution of the fused/spirotricyclic BCD-ring system in the core. To clarify this issue, a flexible synthesis blueprint was devised that allowed us to obtain the originally proposed structure as well as the most plausible amended structure. The key to success was late-stage gold-catalyzed spirocyclization reactions that furnished the isomeric central segments with excellent selectivity. The lexicon of catalytic transformations used to make the required cyclization precursors comprised a titanium-mediated ester methylenation/metathesis cascade, a rare example of a gold-catalyzed allylic substitution, and chain extensions via organocatalytic asymmetric aldehyde propargylation. A wing sector to be attached to the isomeric cores was obtained by Krische allylation, followed by a superbly selective cobalt-catalyzed oxidative cyclization of the resulting di-unsaturated alcohol with the formation of a 2,5-

Identifiers

PMID36652728
PMCPMC9896551
OpenAlexW4317377800

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.