Evidence map›Paper›PMID 27102161›Full record

ArticleBioorganic & medicinal chemistry2016

Synthesis of novel amide and urea derivatives of thiazol-2-ethylamines and their activity against Trypanosoma brucei rhodesiense.

Donald A Patrick, Tanja Wenzler, Sihyung Yang, Patrick T Weiser, Michael Zhuo Wang, Reto Brun, Richard R Tidwell

Abstract read
In one paragraph

Article in Bioorganic & medicinal chemistry, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing 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

14 citing papers in PubMed.

  1. Article
  2. Article
  3. Thiazole Ring-A Biologically Active Scaffold.Molecules (Basel, Switzerland) · 2021
    Review
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Antimicrobial agents and chemotherapy · 2018
    Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. 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

7 authors.

Donald A PatrickUniversity of North Carolina, Pathology & Laboratory Medicine, 805 Brinkhous-Bullitt Bldg, CB7525, Chapel Hill, NC 27599-7525, USA.
Tanja WenzlerSwiss Tropical and Public Health Institute, Socinstrasse 57, CH-4002 Basel, Switzerland; University of Basel, 4003 Basel, Switzerland.
Sihyung YangDepartment of Pharmaceutical Chemistry, University of Kansas, Lawrence, KS 66047, USA.
Patrick T WeiserUniversity of North Carolina, Pathology & Laboratory Medicine, 805 Brinkhous-Bullitt Bldg, CB7525, Chapel Hill, NC 27599-7525, USA.
Michael Zhuo WangDepartment of Pharmaceutical Chemistry, University of Kansas, Lawrence, KS 66047, USA.
Reto BrunSwiss Tropical and Public Health Institute, Socinstrasse 57, CH-4002 Basel, Switzerland; University of Basel, 4003 Basel, Switzerland.
Richard R TidwellUniversity of North Carolina, Pathology & Laboratory Medicine, 805 Brinkhous-Bullitt Bldg, CB7525, Chapel Hill, NC 27599-7525, USA. Electronic address: Tidwell@med.unc.edu.

Funding

Drug Discovery for Human African TrypanosomiasisR01AI106850 · NIAID · UNIVERSITY OF WASHINGTON · PI BUCKNER, FREDERICK SIMMONS, GELB, MICHAEL H · 2013 to 2017
$3.7M
NIAID NIH HHS R01 AI106850
6 · The paper itself

Abstract

2-(2-Benzamido)ethyl-4-phenylthiazole (1) was one of 1035 molecules (grouped into 115 distinct scaffolds) found to be inhibitory to Trypanosoma brucei, the pathogen causing human African trypanosomiasis, at concentrations below 3.6μM and non-toxic to mammalian (Huh7) cells in a phenotypic high-throughput screen of a 700,000 compound library performed by the Genomics Institute of the Novartis Research Foundation (GNF). Compound 1 and 72 analogues were synthesized in this lab by one of two general pathways. These plus 10 commercially available analogues were tested against T. brucei rhodesiense STIB900 and L6 rat myoblast cells (for cytotoxicity) in vitro. Forty-four derivatives were more potent than 1, including eight with IC50 values below 100nM. The most potent and most selective for the parasite was the urea analogue 2-(2-piperidin-1-ylamido)ethyl-4-(3-fluorophenyl)thiazole (70, IC50=9nM, SI>18,000). None of 33 compounds tested were able to cure mice infected with the parasite; however, seven compounds caused temporary reductions of parasitemia (⩾97%) but with subsequent relapses. The lack of in vivo efficacy was at least partially due to their poor metabolic stability, as demonstrated by the short half-lives of 15 analogues against mouse and human liver microsomes.

Indexed as

AmidesAminesAnimalsAntiprotozoal AgentsCell SurvivalDose-Response Relationship, DrugHumansMiceMicrosomes, LiverMolecular StructureMyoblastsParasitic Sensitivity TestsRatsStructure-Activity RelationshipThiazolesTrypanosoma brucei rhodesienseAmidesAminesAntiprotozoal AgentsThiazolesUreaAmideAntitrypanosomalMetabolic stabilityThiazoleUrea

Identifiers

PMID27102161
PMCPMC4862372

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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.