0000000000211414

AUTHOR

Ishmael B. Masesane

0000-0002-4018-2828

showing 3 related works from this author

Erysacleuxins C and D, new isoflavones from the twigs of Erythrina sacleuxii Hua and their cytotoxic activity

2020

Two previously undescribed isoflavones, erysacleuxin C (1) and erysacleuxin D (2), together with seven known compounds (3–9), were isolated and identified from the EtOAc extract of the twigs of Erythrina sacleuxii Hua (Leguminosae). The structures of the isolated compounds were determined on the basis of their spectroscopic and spectrometric data. Evaluation of their cytotoxicity against the human cancer HeLa-S3 cell lines indicated IC50 values of 130.4, 54.9 and 73.9 µM for erysacleuxin C (1), erysacleuxin D (2) and butin (9), respectively. Keywords: Erythrina sacleuxii, Leguminosae, Isoflavone, Erysacleuxin C, Erysacleuxin D, Cytotoxicity

ButinTraditional medicinebiologyGeneral Chemical Engineering02 engineering and technologyGeneral ChemistryIsoflavones010402 general chemistry021001 nanoscience & nanotechnologybiology.organism_classification01 natural sciences0104 chemical scienceslcsh:Chemistrychemistry.chemical_compoundchemistrylcsh:QD1-999Cell cultureIc50 valuesCytotoxic T cellErythrina sacleuxii0210 nano-technologyCytotoxicityHuman cancerArabian Journal of Chemistry
researchProduct

Prenylated isoflavones from the stem bark of Erythrina sacleuxii

2018

Abstract Two new prenylated isoflavones, named erysacleuxin A (1) and B (2), along with eight known compounds, biochanin A (3), 5′-(3-methylbut-2-enyl)pratensein (4), 7-demethylrobustigenin (5), 3′-(3-methylbut-2-enyl)biochanin A (6) abyssinone V-4′-methyl ether (7), sigmoidin E (8), erythrinasinate (9), and burtinone (10) were isolated from the stem bark of Erythrina sacleuxii Hua (Leguminosae). The structures were determined based on spectroscopic and spectrometric data. All isolated compounds were evaluated for antifungal activity against Botrytis cinerea, Candida albicans, Eremothecium coryli, Penicillium notatum, Pyricularia oryzae, and Rhizomucor miehei with compounds 3, 4 and 6 showi…

Eremothecium corylibiologyTraditional medicine010405 organic chemistryRhizomucor mieheiPratenseinPlant ScienceIsoflavonesbiology.organism_classification01 natural sciencesBiochemistry0104 chemical sciencesBiochanin A010404 medicinal & biomolecular chemistrychemistry.chemical_compoundchemistryPenicilliumErythrina sacleuxiiAgronomy and Crop ScienceBiotechnologyBotrytis cinereaPhytochemistry Letters
researchProduct

Chemical constituents of the root wood of Erythrina sacleuxii and determination of the absolute configuration of suberectin

2020

Phytochemical investigation on the root wood of Erythrina sacleuxii (Leguminosae) led to the isolation of nine secondary metabolites (1-9). Compound 1 was isolated from the genus Erythrina for the first time. The pure compounds were identified on the basis of comprehensive spectroscopic and spectrometric analyses, while their absolute configurations were determined based on chiroptical measurements. Compounds 5 and 6 showed weak antifungal activity against Pyricularia oryzae with MIC values of 20 µg/mL.
  
 Bull. Chem. Soc. Ethiop. 2020, 34(1), 135-140.
 DOI: https://dx.doi.org/10.4314/bcse.v34i1.12

AntifungalPyriculariabiologymedicine.drug_classChemistryAbsolute configurationGeneral Chemistry010402 general chemistrybiology.organism_classification01 natural sciences0104 chemical sciencesPhytochemicalMic valuesChemical constituentsmedicineErythrina sacleuxiiErythrinaNuclear chemistryBulletin of the Chemical Society of Ethiopia
researchProduct