Evidence map›Paper›PMID 35417620›Full record

ArticleAngewandte Chemie (International ed. in English)2022

Total Synthesis of (+)-Cochlearol B by an Approach Based on a Catellani Reaction and Visible-Light-Enabled [2+2] Cycloaddition.

Alistair D Richardson, Trenton R Vogel, Emily F Traficante, Kason J Glover, Corinna S Schindler

Abstract read
In one paragraph

Article in Angewandte Chemie (International ed. in English), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing 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

15 citing papers in PubMed.

  1. Article
  2. Review
  3. Visible-Light Mediated Activation of 1,3-Dienes and Allenes via Energy Transfers.Chemistry (Weinheim an der Bergstrasse, Germany) · 2025
    Review
  4. Review
  5. Total Synthesis of (-)-Psathyrin A Enabled by Radical Cyclization.Journal of the American Chemical Society · 2025
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. Molecules (Basel, Switzerland) · 2024
    Article
  14. Article
  15. 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.

Alistair D RichardsonDepartment of Chemistry, University of Michigan, Willard Henry Dow Laboratory, 930 North University Ave., Ann Arbor, MI 48109, USA.ORCID 0000-0002-7894-1682
Trenton R VogelDepartment of Chemistry, University of Michigan, Willard Henry Dow Laboratory, 930 North University Ave., Ann Arbor, MI 48109, USA.
Emily F TraficanteDepartment of Chemistry, University of Michigan, Willard Henry Dow Laboratory, 930 North University Ave., Ann Arbor, MI 48109, USA.
Kason J GloverDepartment of Chemistry, University of Michigan, Willard Henry Dow Laboratory, 930 North University Ave., Ann Arbor, MI 48109, USA.
Corinna S SchindlerDepartment of Chemistry, University of Michigan, Willard Henry Dow Laboratory, 930 North University Ave., Ann Arbor, MI 48109, USA.ORCID 0000-0003-4968-8013

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A 14-step synthesis of (+)-cochlearol B is reported. This renoprotective meroterpenoid features a unique core structure containing a densely substituted cyclobutane ring with three stereocenters. Our strategy employed an organocatalytic Kabbe condensation in route to the key chromenyl triflate. A subsequent Catellani reaction incorporated the remaining carbon atoms featured in the skeleton of cochlearol B. An ensuing visible-light-mediated [2+2] photocycloaddition closed the cyclobutane and formed the central bicyclo[3.2.0]heptane core. Notably, careful design and tuning of the Catellani and photocycloaddition reactions proved crucial in overcoming undesired reactivity, including cyclopropanation reactions and [4+2] cycloadditions.

Indexed as

CyclobutanesCycloaddition ReactionStereoisomerismTerpenescochlearol BCyclobutanesTerpenes[2+2] PhotocycloadditionCatellani ReactionMeroterpenoidsTotal SynthesisVisible Light

Identifiers

PMID35417620
PMCPMC9401860

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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.