Evidence map›Paper›PMID 29507290›Full record

ArticleNature communications2018

Reagent-controlled regiodivergent ring expansions of steroids.

Manwika Charaschanya, Jeffrey Aubé

Abstract read
In one paragraph

Article in Nature communications, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing 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

17 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Regiodivergent Ring-Expansion of Oxindoles to Quinolinones.Journal of the American Chemical Society · 2024
    Article
  5. Article
  6. Revisiting the bromination of 3β-hydroxycholest-5-ene with CBrBeilstein journal of organic chemistry · 2023
    Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Intramolecular CspChemical science · 2020
    Article
  12. Article
  13. Diversity-oriented synthesis of 17-spirosteroids.Beilstein journal of organic chemistry · 2020
    Article
  14. Article
  15. Article
  16. Article
  17. 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

2 authors.

Manwika CharaschanyaDepartment of Medicinal Chemistry, University of Kansas, Lawrence, KS, 66045, USA.
Jeffrey AubéDivision of Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC, 27599-7363, USA. jaube@unc.edu.ORCID http://orcid.org/0000-0003-1049-5767

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Ring expansion provides a powerful way of introducing a heteroatom substituent into a carbocyclic framework. However, such reactions are often limited by the tendency of a given substrate to afford only one of the two rearrangement products or fail to achieve high selectivity at all. These limitations are particularly acute when seeking to carry out late-stage functionalization of natural products as starting points in drug discovery. In this work, we present a stereoelectronically controlled ring expansion sequence towards selective and flexible access to complementary ring systems derived from common steroidal substrates. Chemical diversification of the reaction intermediate affords over 100 isomerically pure analogs with spatial and functional diversity. This regiodivergent rearrangement, and the concept of using chiral reagents to affect regiocontrol in chiral natural products, should be broadly applicable to late-stage natural product diversification programs.

Indexed as

AzasteroidsMolecular StructureStereoisomerismAzasteroids

Identifiers

PMID29507290
PMCPMC5838248

What OpenQuestion holds

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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.