Limonoids showing selective toxicity to DNA repair-deficient yeast and other constituents of Trichilia emetica.

Autor: Gunatilaka AA; Department of Chemistry, Virginia Polytechnic Institute, Blacksburg, USA., Bolzani Vda S, Dagne E, Hofmann GA, Johnson RK, McCabe FL, Mattern MR, Kingston DG
Jazyk: angličtina
Zdroj: Journal of natural products [J Nat Prod] 1998 Feb; Vol. 61 (2), pp. 179-84.
DOI: 10.1021/np9701687
Abstrakt: Bioactivity-directed fractionation of the MeCOEt extract of Trichilia emetica (Meliaceae) resulted in the isolation of the limonoids nymania 1 (1), drageana 4 (3), trichilin A (4), rohituka 3 (5), and Tr-B (7) and the novel seco-A protolimonoid 8. Of these, nymania 1 and Tr-B showed selective inhibitory activity toward DNA repair-deficient yeast mutants. The isolation, structure elucidation, 13C NMR spectral assignments, and biological activities of these compounds are reported.
Databáze: MEDLINE