Medicinal Chemistry Optimization of a Diaminopurine Chemotype : Toward a Lead for Trypanosoma brucei Inhibitors

Human African trypanosomiasis (HAT), or sleeping sickness, is caused by the protozoan parasite Trypanosoma brucei and transmitted through the bite of infected tsetse flies. The disease is considered fatal if left untreated. To identify new chemotypes against Trypanosoma brucei, previously we identified 797 potent kinase-targeting inhibitors grouped into 59 clusters plus 53 singleton compounds with at least 100-fold selectivity over HepG2 cells. From this set of hits, a cluster of diaminopurine-derived compounds was identified. Herein, we report our medicinal chemistry investigation involving the exploration of structure-activity and structure-property relationships around one of the high-throughput screening (HTS) hits, N2-(thiophen-3-yl)-N6-(2,2,2-trifluoroethyl)-9H-purine-2,6-diamine (1, NEU-1106). This work led to the identification of a potent lead compound (4aa, NEU-4854) with improved in vitro absorption, distribution, metabolism, and excretion (ADME) properties, which was progressed into proof-of-concept translation of in vitro antiparasitic activity to in vivo efficacy.

Medienart:

E-Artikel

Erscheinungsjahr:

2020

Erschienen:

2020

Enthalten in:

Zur Gesamtaufnahme - volume:63

Enthalten in:

Journal of medicinal chemistry - 63(2020), 17 vom: 10. Sept., Seite 9912-9927

Sprache:

Englisch

Beteiligte Personen:

Singh, Baljinder [VerfasserIn]
Diaz-Gonzalez, Rosario [VerfasserIn]
Ceballos-Perez, Gloria [VerfasserIn]
Rojas-Barros, Domingo I [VerfasserIn]
Gunaganti, Naresh [VerfasserIn]
Gillingwater, Kirsten [VerfasserIn]
Martinez-Martinez, Maria Santos [VerfasserIn]
Manzano, Pilar [VerfasserIn]
Navarro, Miguel [VerfasserIn]
Pollastri, Michael P [VerfasserIn]

Links:

Volltext

Themen:

Journal Article
Purines
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't
Trypanocidal Agents

Anmerkungen:

Date Completed 18.12.2020

Date Revised 11.09.2021

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1021/acs.jmedchem.0c01017

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM313609608