Resumo

DOMINGUES, Elaine A. et al. Phytochemical study and evaluation of toxicity against Artemia salina and antimicrobial activity of Calycorectes psidiiflorus (O. Berg) Sobral, Myrtaceae. Rev. bras. farmacogn. [online]. 2010, vol.20, n.1, pp. 23-27. ISSN 0102-695X.  http://dx.doi.org/10.1590/S0102-695X2010000100006.

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.

Palavras-chave : Calycorectes psidiiflorus; Myrtaceae; chemical constituents; biological assays.