Evidence map›Paper›PMID 31788926›Full record

ArticleAngewandte Chemie (International ed. in English)2020

Bioinspired Synthesis of (-)-PF-1018.

Hugo Quintela-Varela, Cooper S Jamieson, Qianzhen Shao, K N Houk, Dirk Trauner

Open access · greenAbstract read
In one paragraph

Article in Angewandte Chemie (International ed. in English), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
2.4field-weighted citation impact, top 12% 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

5 citing papers in PubMed, 28 citations in OpenAlex.

  1. Article
  2. Article
  3. Bioinspired Asymmetric Total Synthesis of Emeriones A-C.Angewandte Chemie (International ed. in English) · 2022
    Article
  4. Review
  5. Article
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 at 2 institutions in 3 countries.

Hugo Quintela-VarelaDepartment of Chemistry, Ludwig-Maximilians-Universität München, Butenandtstrasse 5-13, 81377, München, Germany.
Cooper S JamiesonDepartment of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA, 90095, USA.
Qianzhen ShaoDepartment of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA, 90095, USA.
K N HoukDepartment of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA, 90095, USA.ORCID 0000-0002-8387-5261
Dirk TraunerDepartment of Chemistry, New York University, 100 Washington Square East, New York, NY, 10003, USA.ORCID 0000-0002-6782-6056
University of California, Los Angeles · USNew York University · US

Funding

Genetically-Targeted Photo-Pharmacology for Native Opioid ReceptorsR61DA051529 · NIDA · WEILL MEDICAL COLL OF CORNELL UNIV · PI LEVITZ, JOSHUA, TRAUNER, DIRK HARTWIG · 2020 to 2022
$1.4M
Acquisition of a Cryoprobe for a 600 MHz NMR SpectrometerS10OD016343 · OD · NEW YORK UNIVERSITY · PI KROGSGAARD, MICHELLE, TRAASETH, NATHANIEL J. · 2014 to 2014
$360k
NIDA NIH HHS R61 DA051529NIH HHS S10 OD016343
6 · The paper itself

Abstract

The combination of electrocyclizations and cycloadditions accounts for the formation of a range of fascinating natural products. Cascades consisting of 8π electrocyclizations followed by a 6π electrocyclization and a cycloaddition are relatively common. We now report the synthesis of the tetramic acid PF-1018 through an 8π electrocyclization, the product of which is immediately intercepted by a Diels-Alder cycloaddition. The success of this pericyclic cascade was critically dependent on the substitution pattern of the starting polyene and could be rationalized through DFT calculations. The completion of the synthesis required the instalment of a trisubstituted double bond by radical deoxygenation. An unexpected side product formed through 4-exo-trig radical cyclization could be recycled through an unprecedented triflation/fragmentation.

Indexed as

Biological ProductsCyclizationCycloaddition ReactionDensity Functional TheoryElectrochemical TechniquesModels, MolecularPolyenesPyrrolidinonesPyrrolizidine AlkaloidsStereoisomerismBiological ProductsPF 1018PolyenesPyrrolidinonesPyrrolizidine Alkaloidstetramic acidbiomimetic synthesisDiels-Alder cycloadditionelectrocyclizationtetramic acidstotal synthesis

Identifiers

PMID31788926
PMCPMC9899496
OpenAlexW2990360283

What OpenQuestion holds

Textmetadata
LicenceTDM
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.