Synthetic studies towards isomeric pyrazolopyrimidines as potential ATP synthesis inhibitors of Mycobacterium tuberculosis. Structural correction of reported N-(6-(2-(dimethylamino)ethoxy)-5-fluoropyridin-3-yl)-2-(4-fluorophenyl)-5-(trifluoromethyl)pyrazolo[1,5-α]pyrimidin-7-amine

© 2021 The Author(s)..

During our studies into preparing analogues of pyrazolopyrimidine as ATP synthesis inhibitors of Mycobacterium tuberculosis, a regiospecific condensation reaction between ethyl 4,4,4-trifluoroacetoacetate and 3-(4-fluorophenyl)-1H-pyrazol-5-amine was observed which was dependent on the specific reaction conditions employed. This work identifies optimized reaction conditions to access either the pyrazolo[3,4-β]pyridine or the pyrazolo[1,5-α]pyrimidine scaffold. This has led to the structural confirmation of the previously reported pyrazolopyrimidine 17b which was reported as pyrazolo[1,5-α]pyrimidine structure 2 which was corrected to pyrazolo[3,4-β]-pyrimidine 19.

Medienart:

E-Artikel

Erscheinungsjahr:

2022

Erschienen:

2022

Enthalten in:

Zur Gesamtaufnahme - volume:90

Enthalten in:

Tetrahedron letters - 90(2022) vom: 02. Feb., Seite None

Sprache:

Englisch

Beteiligte Personen:

Choi, Peter J [VerfasserIn]
Lu, Guo-Liang [VerfasserIn]
Sutherland, Hamish S [VerfasserIn]
Giddens, Anna C [VerfasserIn]
Franzblau, Scott G [VerfasserIn]
Cooper, Christopher B [VerfasserIn]
Denny, William A [VerfasserIn]
Palmer, Brian D [VerfasserIn]

Links:

Volltext

Themen:

Antimicrobial resistance
Journal Article
Pyrazolopyrimidines
Structure-activity relationships
Synthesis
Tuberculosis

Anmerkungen:

Date Revised 11.02.2022

published: Print

Citation Status PubMed-not-MEDLINE

doi:

10.1016/j.tetlet.2021.153611

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM336727208