A preliminary study on quinazolinylaminobenzoyl monopeptide esters as effective Gram-positive bacteriostatic agents

AIM: To investigate a novel series of quinazoline monopeptide esters for the in vitro antibacterial activity.

METHODOLOGY/RESULTS: The compounds were synthesized via one-pot Dimroth rearrangement of suitable formamidine intermediates with 3-aminobenzoic acid, followed by coupling the resulting acids with amino acid esters and screening for their antibacterial activity by broth dilution method. The compounds 5a, 5b, 5c, 5g, 5i and 5j showed promising activity against the Gram-positive bacteria, 5c and 5g being the most potent against Enterococcus faecalis and Staphylococcus aureus, respectively, with a minimal inhibitory concentration of 0.51 μM. The percentage hemolysis of the compounds ranged from 2.79 to 12.92 at a concentration of 100 μg/ml. The molecular docking studies revealed their GlmU inhibitory action.

CONCLUSION: The compounds 5a and 5g emerged as antibacterial hits.

Medienart:

E-Artikel

Erscheinungsjahr:

2019

Erschienen:

2019

Enthalten in:

Zur Gesamtaufnahme - volume:11

Enthalten in:

Future medicinal chemistry - 11(2019), 5 vom: 07. März, Seite 407-422

Sprache:

Englisch

Beteiligte Personen:

Purushotham, Nikil [VerfasserIn]
Poojary, Boja [VerfasserIn]
Rai, Vaishali [VerfasserIn]
Vasantha, Sowmya Padejjar [VerfasserIn]

Links:

Volltext

Themen:

3-aminobenzoic acid
463-52-5
Amidines
Anti-Bacterial Agents
Antibacterial
Dimroth rearrangement
Esters
Formamidine
G2X3B3O37U
GlmU
Journal Article
Meta-Aminobenzoates
Molecular docking
Monopeptide esters
Oligopeptides
Quinazoline
Quinazolines
Research Support, Non-U.S. Gov't

Anmerkungen:

Date Completed 09.12.2019

Date Revised 17.12.2019

published: Print-Electronic

Citation Status MEDLINE

doi:

10.4155/fmc-2018-0275

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM295107073