Estudo fitoquímico e avaliação da toxicidade frente a Artemia salina e da atividade antimicrobiana de Calycorectes psidiiflorus (O. Berg) Sobral, Myrtaceae / Phytochemical study and evaluation of toxicity against Artemia salina and antimicrobial activity of Calycorectes psidiiflorus (O. Berg) Sobral, Myrtaceae
Rev. bras. farmacogn
; 20(1): 23-27, Jan.-Mar. 2010. ilus
Article
in Portuguese
| LILACS
| ID: lil-551257
Responsible library:
BR1.1
RESUMO
O estudo fitoquímico das folhas de Calycorectes psidiiflorus (O. Berg) Sobral, Myrtaceae, resultou no isolamento e identificação de sesquiterpeno [8-hidroxicalameneno (1)], triterpenos [α-amirina (2a) e β-amirina (2b)], flavonóide [3-O-α-ramnopiranosil-7-O-bglucopiranosil canferol (3)], e alcalóide [1,2,3,4-tetraidro-1-metil-β-carbolina (4)]. As estruturas das substâncias isoladas foram elucidadas com base nos seus dados de RMN em comparação com os da literatura. A substância 8-hydroxicalameneno apresentou atividade antibacteriana (MIC = 7,8 µg/mL) e antifúngica (MIC = 15,6 µg/mL).
ABSTRACT
The phytochemical study of Calycorectes psidiiflorus (O. Berg) Sobral leaves resulted in isolation and identification of the sesquiterpene 8-hydroxycalamenene (1), triterpenes α-amyrin (2a) and β-amyrin (2b), flavonoid 3-O-α-rhamnopyranosyl-7-O-β-glucopyranosyl kaempferol (3), and of the alkaloid 1,2,3,4-tetrahydro-1-methyl-β-carboline (4). The structures of the isolated compounds were elucidated based on their spectroscopic NMR data and comparison with those reported in literature. Substance 1 presented antibacterial (MIC = 7.8 µg/mL) and antifungal (MIC = 15.6 µg/ mL) activities.
Full text:
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Collection:
International databases
Database:
LILACS
Language:
Portuguese
Journal:
Rev. bras. farmacogn
Journal subject:
Pharmacy
Year:
2010
Document type:
Article
Affiliation country:
Brazil
Institution/Affiliation country:
Universidade Estadual de Maringá/BR