Evidence map›Paper›PMID 28368003›Full record

ArticleNature communications2017

Enzyme catalysed Pictet-Spengler formation of chiral 1,1'-disubstituted- and spiro-tetrahydroisoquinolines.

Benjamin R Lichman, Jianxiong Zhao, Helen C Hailes, John M Ward

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed
8.2field-weighted citation impact, top 2% 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

37 citing papers in PubMed, 96 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. Understanding the Enzyme (Journal of chemical information and modeling · 2024
    Article
  7. Article
  8. Rational Engineering of (Molecules (Basel, Switzerland) · 2023
    Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. New Trends and Future Opportunities in the Enzymatic Formation of C-C, C-N, and C-O bonds.Chembiochem : a European journal of chemical biology · 2022
    Review
  14. Article
  15. Review
  16. Article
  17. Article
  18. Enzymkatalysierte späte Modifizierungen: Besser spät als nie.Angewandte Chemie (Weinheim an der Bergstrasse, Germany) · 2021
    Review
  19. Enzymatic Late-Stage Modifications: Better Late Than Never.Angewandte Chemie (International ed. in English) · 2021
    Review
  20. Recent trends in biocatalysis.Chemical Society reviews · 2021
    Review
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

4 authors at 2 institutions in 1 country.

Benjamin R LichmanDepartment of Biochemical Engineering, University College London, Gower Street, London WC1E 6BT, UK.ORCID 0000-0002-0033-1120
Jianxiong ZhaoDepartment of Chemistry, University College London, Christopher Ingold Building, 20 Gordon Street, London, WC1H 0AJ, UK.
Helen C HailesDepartment of Chemistry, University College London, Christopher Ingold Building, 20 Gordon Street, London, WC1H 0AJ, UK.
John M WardDepartment of Biochemical Engineering, University College London, Gower Street, London WC1E 6BT, UK.
University College London · GBJohn Innes Centre · GB

Funding

Wellcome Trust
6 · The paper itself

Abstract

The Pictet-Spengler reaction (PSR) involves the condensation and ring closure between a β-arylethylamine and a carbonyl compound. The combination of dopamine and ketones in a PSR leads to the formation of 1,1'-disubstituted tetrahydroisoquinolines (THIQs), structures that are challenging to synthesize and yet are present in a number of bioactive natural products and synthetic pharmaceuticals. Here we have discovered that norcoclaurine synthase from Thalictrum flavum (TfNCS) can catalyse the PSR between dopamine and unactivated ketones, thus facilitating the facile biocatalytic generation of 1,1'-disubstituted THIQs. Variants of TfNCS showing improved conversions have been identified and used to synthesize novel chiral 1,1'-disubstituted and spiro-THIQs. Enzyme catalysed PSRs with unactivated ketones are unprecedented, and, furthermore, there are no equivalent stereoselective chemical methods for these transformations. This discovery advances the utility of enzymes for the generation of diverse THIQs in vitro and in vivo.

Identifiers

PMID28368003
PMCPMC5382262
OpenAlexW2604841862

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.