Results 51 to 60 of about 21,202 (267)

Synthesis of non-purine analogs of 6-aryl-9-benzylpurines, and their antimycobacterial activities : compounds modified in the imidazole ring [PDF]

open access: yes, 2010
Purine analogs modified in the five-membered ring have been synthesized and examined for antibacterial activity against Mycobacterium tuberculosis H37Rv in vitro employing the microplate alamar blue assay (MABA). The 9-deaza analogs were only found to be
Charnock, Colin   +5 more
core   +2 more sources

Antimycobacterial Activities of Novel Levofloxacin Analogues [PDF]

open access: yesAntimicrobial Agents and Chemotherapy, 2000
ABSTRACT In order to investigate structure-activity relationships between antimycobacterial activities and basic substituents at the C-10 position of levofloxacin (LVFX), we synthesized a series of pyridobenzoxazine derivatives by replacement of the N -methylpiperazinyl group of LVFX with various basic ...
K, Kawakami   +5 more
openaire   +2 more sources

Non-disulfide-Bridge peptide 5.5 from the Scorpion Hadrurus gertschi Inhibits the growth of mycobacterium abscessus subsp. massiliense [PDF]

open access: yes, 2017
Multi-drug resistant microorganisms have been a growing concern during the last decades due to their contribution in mortality rates worldwide. Antimicrobial peptides (AMPs) are broad spectrum antimicrobial agents that display potent microbicidal ...
Kipnis, Ana Paula Junqueira   +8 more
core   +1 more source

Synthesis and Antimycobacterial Activity of 2,1′-Dihydropyridomycins [PDF]

open access: yesACS Medicinal Chemistry Letters, 2012
Dihydropyridomycins 2 and 3, which lack the characteristic enol ester moiety of the potent antimycobacterial natural product pyridomycin (1), have been prepared from l-Thr, R- and S-hydroxy isovaleric acid, and 3-pyridinecarboxaldehyde. The 2R isomer 2 shows only 4-fold lower anti-Mtb activity than 1, indicating that the enol ester moiety in the ...
Oliver P. Horlacher   +3 more
openaire   +2 more sources

Design, synthesis and structure-activity relationship study of wollamide B; a new potential anti TB agent. [PDF]

open access: yesPLoS ONE, 2017
Wollamide B is a cationic antimycobacterial cyclohexapeptide that exhibits activity against Mycobacterium bovis (M. bovis) (IC50 of 3.1 μM). Aiming to define its structural activity relationship (SAR), optimizing potency and pharmacokinetic properties ...
Henok Asfaw   +7 more
doaj   +1 more source

Identification of a 3-Alkylpyridinium Compound from the Red Sea Sponge Amphimedon chloros with In Vitro Inhibitory Activity against the West Nile Virus NS3 Protease. [PDF]

open access: yes, 2018
Viruses are underrepresented as targets in pharmacological screening efforts, given the difficulties of devising suitable cell-based and biochemical assays.
Duggan, Brendan M   +8 more
core   +3 more sources

Substituted N-Phenylpyrazine-2-carboxamides: Synthesis and Antimycobacterial Evaluation

open access: yesMolecules, 2009
The condensation of chlorides of substituted pyrazinecarboxylic acids with ringsubstituted anilines yielded twelve substituted pyrazinecarboxylic acid amides.
Michaela Svobodová   +4 more
doaj   +1 more source

Antimycobacterial and anti-inflammatory activities of metabolites from endophytic and soil fungi

open access: yesPhytomedicine Plus, 2022
Background: Increased prevalence of high virulent strains of Mycobacterium tuberculosis and M. kansasii require the development of new antimycobacterial drugs safe and more effective.
Willian Jonis Andrioli   +8 more
doaj   +1 more source

Esters of pyrazinoic acid are active against pyrazinamide-resistant strains of Mycobacterium tuberculosis and other naturally resistant mycobacteria in vitro and ex vivo within macrophages. [PDF]

open access: yes, 2015
Pyrazinamide (PZA) is active against major Mycobacterium tuberculosis species (M. tuberculosis, M. africanum, and M. microti) but not against M. bovis and M. avium. The latter two are mycobacterial species involved in human and cattle tuberculosis and in
Carmo, N   +6 more
core   +1 more source

Therapeutic potential of Zanha africana (Radlk.) Exell: antimycobacterial activity and safety evaluation

open access: yesScientific African
Background: Zanha africana (Radlk.) Exell extracts are commonly utilized in Tanzania and other countries for treating conditions associated with HIV and AIDS, including tuberculosis (TB).
Alphonce Ignace Marealle   +11 more
doaj   +1 more source

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