Evidence map›Paper›PMID 36287147›Full record

ArticleJournal of the American Chemical Society2022

Asymmetric Total Synthesis of Havellockate.

Nicholas J Hafeman, Melinda Chan, Tyler J Fulton, Eric J Alexy, Steven A Loskot, Scott C Virgil, Brian M Stoltz

Open access · greenAbstract read
In one paragraph

Article in Journal of the American Chemical Society, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
4.0field-weighted citation impact, top 6% 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

12 citing papers in PubMed, 29 citations in OpenAlex.

  1. Asymmetric Total Synthesis of (+)-Ineleganolide.Angewandte Chemie (International ed. in English) · 2026
    Article
  2. The Diels-Alder Reaction as a Key Step in Natural Product Synthesis.Progress in the chemistry of organic natural products · 2026
    Review
  3. Article
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  12. A Convergent Total Synthesis of (+)-Ineleganolide.Journal of the American Chemical Society · 2023
    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

7 authors at 1 institution in 1 country.

Nicholas J HafemanThe Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, MC 101-20, Pasadena, California 91125, United States.ORCID 0000-0001-7525-7597
Melinda ChanThe Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, MC 101-20, Pasadena, California 91125, United States.ORCID 0000-0002-2495-0110
Tyler J FultonThe Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, MC 101-20, Pasadena, California 91125, United States.
Eric J AlexyThe Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, MC 101-20, Pasadena, California 91125, United States.ORCID 0000-0002-2971-9698
Steven A LoskotThe Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, MC 101-20, Pasadena, California 91125, United States.
Scott C VirgilThe Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, MC 101-20, Pasadena, California 91125, United States.
Brian M StoltzThe Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, MC 101-20, Pasadena, California 91125, United States.ORCID 0000-0001-9837-1528
California Institute of Technology · US

Funding

The Synthesis of Bioactive Polycyclic Natural ProductsR01GM080269 · NIGMS · CALIFORNIA INSTITUTE OF TECHNOLOGY · PI STOLTZ, BRIAN M · 2007 to 2022
$5.0M
The Synthesis of Bioactive Natural Products as a Driving Force for Discovery in Organic ChemistryR35GM145239 · NIGMS · CALIFORNIA INSTITUTE OF TECHNOLOGY · PI BRIAN M STOLTZ · 2022 to 2026
$3.1M
NIGMS NIH HHS R01 GM080269NIGMS NIH HHS R35 GM145239
6 · The paper itself

Abstract

The first total synthesis of the furanobutenolide-derived cembranoid diterpenoid havellockate is disclosed. Our convergent strategy employs a Julia-Kocienski olefination to join two enantioenriched fragments to produce a diene that is subsequently used in a propiolic acid esterification/Diels-Alder cascade. This sequence generates the fused carbocyclic core of the natural product in short order. A challenging Zn-mediated Barbier allylation then forges the final C-C bond and also establishes two vicinal stereogenic centers. Finally, a Cu-catalyzed aerobic oxidation facilitates the formation of the β-hydroxybutanolide to complete the total synthesis.

Indexed as

DiterpenesStereoisomerismDiterpeneshavellockate

Identifiers

PMID36287147
PMCPMC9997676
OpenAlexW4307343788

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.