Evidence map›Paper›PMID 33784436›Full record

ArticleChemistry (Weinheim an der Bergstrasse, Germany)2021

A Protecting-Group-Free Synthesis of (-)-Salvinorin A.

Patrick Zimdars, Yuzhou Wang, Peter Metz

Abstract read
In one paragraph

Article in Chemistry (Weinheim an der Bergstrasse, Germany), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing 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

4 citing papers in PubMed.

  1. Article
  2. Review
  3. Article
  4. A Protecting-Group-Free Synthesis of (-)-Salvinorin A.Chemistry (Weinheim an der Bergstrasse, Germany) · 2021
    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

3 authors.

Patrick ZimdarsFakultät Chemie und Lebensmittelchemie, Organische Chemie I, Technische Universität Dresden, Bergstraße 66, 01069, Dresden, Germany.
Yuzhou WangFakultät Chemie und Lebensmittelchemie, Organische Chemie I, Technische Universität Dresden, Bergstraße 66, 01069, Dresden, Germany.
Peter MetzFakultät Chemie und Lebensmittelchemie, Organische Chemie I, Technische Universität Dresden, Bergstraße 66, 01069, Dresden, Germany.ORCID http://orcid.org/0000-0002-0592-9850

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A concise enantioselective total synthesis of the neoclerodane diterpene (-)-salvinorin A is reported. The stereogenic center at C-12 was installed by catalytic asymmetric propargylation with excellent enantioselectivity, and the remaining six stereogenic centers were set up highly diastereoselectively under substrate control. As for our previous synthesis of racemic salvinorin A, two intramolecular Diels-Alder reactions were applied to generate the tricyclic core. A chemoselective Mitsunobu inversion of a syn 1,2-diol allowed for further streamlining of the original reaction sequence by two steps. Overall, (-)-salvinorin A was synthesized in only 16 steps starting from 3-furaldehyde with 1.4 % total yield. Furthermore, an alternative intramolecular Diels-Alder strategy employing a 2-bromo-1,3-diene moiety was investigated.

Indexed as

Diterpenes, ClerodaneCatalysisCycloaddition ReactionStereoisomerismDiterpenes, Clerodanesalvinorin AAsymmetric catalysisCycloadditionMitsunobu reactionTerpenoidsTotal synthesis

Identifiers

PMID33784436
PMCPMC8252117

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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.