Evidence map›Paper›PMID 32559350›Full record

ArticleAngewandte Chemie (International ed. in English)2020

Divergent Synthesis of Monosubstituted and Unsymmetrical 3,6-Disubstituted Tetrazines from Carboxylic Ester Precursors.

Yixin Xie, Yinzhi Fang, Zhen Huang, Amanda M Tallon, Christopher W Am Ende, Joseph M Fox

Open access · greenAbstract read
In one paragraph

Article in Angewandte Chemie (International ed. in English), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
3.3field-weighted citation impact, top 7% 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

27 citing papers in PubMed, 52 citations in OpenAlex.

  1. Review
  2. Azo-Povarov Cycloaddition ofThe Journal of organic chemistry · 2026
    Article
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  10. Synthesis of CThe Journal of organic chemistry · 2024
    Article
  11. Review
  12. Article
  13. Review
  14. Review
  15. Minimalist TetrazineJournal of the American Chemical Society · 2024
    Article
  16. RSC chemical biology · 2023
    Article
  17. Article
  18. Review
  19. Solid-Phase Synthesis ofOrganic letters · 2023
    Article
  20. 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

6 authors at 2 institutions in 1 country.

Yixin XieDepartment of Chemistry and Biochemistry, University of Delaware, Newark, DE, 19716, USA.
Yinzhi FangDepartment of Chemistry and Biochemistry, University of Delaware, Newark, DE, 19716, USA.
Zhen HuangPfizer Worldwide Research and Development, 1 Portland Street, Cambridge, MA, 02139, USA.
Amanda M TallonDepartment of Chemistry and Biochemistry, University of Delaware, Newark, DE, 19716, USA.
Christopher W Am EndePfizer Worldwide Research and Development, Eastern Point Road, Groton, CT, 06340, USA.
Joseph M FoxDepartment of Chemistry and Biochemistry, University of Delaware, Newark, DE, 19716, USA.ORCID 0000-0002-8258-1640
University of Delaware · USPfizer (United States) · US

Funding

This renovation project will create over 1455 sq. ft. of state- of-the-art reseaP20GM104316 · NIGMS · UNIVERSITY OF DELAWARE · PI SCHMITZ, KARL ROBERT · 2014 to 2024
$26.8M
Pilot Research Subproject ProgramP30GM110758 · NIGMS · UNIVERSITY OF DELAWARE · PI PATEL, SANDEEP · 2014 to 2018
$5.8M
Toolkit for Fast, Multipurpose and Inducible Bioorthogonal ChemistryR01GM132460 · NIGMS · UNIVERSITY OF DELAWARE · PI JOSEPH M FOX · 2019 to 2026
$4.2M
High Sensitivity NMR Spectrometer with CryoprobeS10OD025185 · OD · UNIVERSITY OF DELAWARE · PI FOX, JOSEPH M · 2019 to 2019
$930k
Q-Exactive Orbitrap LC-MC/MS SystemS10OD016267 · OD · UNIVERSITY OF DELAWARE · PI JOHNSTON, MURRAY V · 2013 to 2013
$573k
High Performance Digital NMR SpectrometerS10RR026962 · NCRR · UNIVERSITY OF DELAWARE · PI FOX, JOSEPH M · 2010 to 2010
$500k
NCRR NIH HHS S10 RR026962NIGMS NIH HHS P20 GM104316NIGMS NIH HHS P20GM104316NIGMS NIH HHS P30 GM110758NIGMS NIH HHS P30GM110758NIGMS NIH HHS R01 GM132460NIH HHS NIH GM132460NIH HHS S10 OD016267NIH HHS S10 OD025185
6 · The paper itself

Abstract

Since tetrazines are important tools to the field of bioorthogonal chemistry, there is a need for new approaches to synthesize unsymmetrical and 3-monosubstituted tetrazines. Described here is a general, one-pot method for converting (3-methyloxetan-3-yl)methyl carboxylic esters into 3-thiomethyltetrazines. These versatile intermediates were applied to the synthesis of unsymmetrical tetrazines through Pd-catalyzed cross-coupling and in the first catalytic thioether reduction to access monosubstituted tetrazines. This method enables the development of new tetrazine compounds possessing a favorable combination of kinetics, small size, and hydrophilicity. It was applied to a broad range of aliphatic and aromatic ester precursors and to the synthesis of heterocycles including BODIPY fluorophores and biotin. In addition, a series of tetrazine probes for monoacylglycerol lipase (MAGL) were synthesized and the most reactive one was applied to the labeling of endogenous MAGL in live cells.

Indexed as

Carboxylic AcidsEstersMolecular StructureTetrazolesCarboxylic AcidsEstersTetrazolesactivity-based probesbioorthogonal chemistrydivergent synthesisorthoesterstetrazines

Identifiers

PMID32559350
PMCPMC7733736
OpenAlexW3036084487

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.