Chemical constituents of the stems of Spathelia excelsa (Rutaceae) and activity against Aedes aegypti

Abstract

Phytochemical investigation from, the stems of Spathelia excelia (Rutaceae) collected in Amazonas yielded deacetylspathelin (1), 7,8-dimethoxyflindersine (2), new glabretal-type triterpenoid 3β-angeloyl-21,24-epoxy-7α, 21α,23α,25-tetrahydroxy-4α,4β,8β,10βteti, amethyl-25-dimethyI-14,18-cycIo-5α,13α,14α, 17α-cholestane (3), in addition to the known steroids β-sitosterol and stigmasterol. Their structures were established, on the basis of spectral data. The compounds 1 and 3 were assayed on Aedes aegypti (larvicidal and adulticidal activities and compound 3 exhibited larvicidal properties with LC50 of 4,8 μg/mL.