Antiprotozoal alkaloids from Psychotria prunifolia (Kunth) steyerm

Resumo

The continuity of the phytochemical study of crude extracts of P. prunifolia’s roots and branches led to the isolation of five indole-b-carboline alkaloids. Among them, the 10-hydroxyiso- deppeaninol and N-oxide-10-hydroxy-antirhine derivatives are described here for the first time. The structures were achieved through 1D and 2D NMR, IR and HRMS analyses. The branches and roots crude extracts and the alkaloids 14-oxoprunifoleine and strictosamide showed selective activity against L. amazonensis, with IC50 values of 16.0 and 40.7 mg per mL, respectively.

Descrição

Palavras-chave

β-carboline alkaloids, Antiprotozoal, Trypanosoma, Leishmania, Psychotria prunifolia, Rubiaceae

Citação

KATO, Lucilia et al. Antiprotozoal alkaloids from Psychotria prunifolia (Kunth) steyerm. Journal of the Brazilian Chemical Society, Campinas, v. 23, n. 2, p. 355-260, 2012.