Abstract
The Trichilia genus (Meliaceae) consists of about 230 species distributed throughout tropical America and its phytochemical profile is rich in terpenic metabolites. Droplet counter-current chromatography (DCCC) was used for the isolation and purification of secondary metabolites obtained from a dichloromethane fraction (2.9 g) of Trichilia quadrijuga stems. A hexane–ethyl acetate–methanol–water (1:2:1.75:1, v/v/v/v) solvent system was chosen to isolate 2β,3β,4β-trihydroxypregnan-16-one (1, 24.5 mg, 0.8%), kudtdiol (2, 45.0 mg, 1.6%) and 3-O-β-d-glucopyranosylsitosterol (3, 6.0 mg, 0.2%). The results showed that DCCC was a very effective tool for the isolation of terpenes from T. quadrijuga.
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Acknowledgments
The authors are grateful to the technician Eliane Gonçalves de Carvalho from the Centro Analítico of Far-Manguinhos (Fiocruz) for the aqcisition of NMR spectra, the Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) and the Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ).
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Rodrigues, V.F., Carmo, H.M., Oliveira, R.R. et al. Isolation of Terpenoids from Trichilia quadrijuga (Meliaceae) by Droplet Counter-Current Chromatography. Chroma 70, 1191–1195 (2009). https://doi.org/10.1365/s10337-009-1293-7
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DOI: https://doi.org/10.1365/s10337-009-1293-7