RESUMO
OBJECTIVE: To investigate the chemical constituents from the whole herbs of Anoectochilus chapaensis. METHODS: The chemical constituents were isolated and purified by repeated column chromatographies with silica gel, Sephadex LH-20 and preparative TLC. Their structures were identified by their physiochemical property and spectral data. RESULTS: 6 compounds were isolated and elucidated as follows: (1) Friedelin, (2) Sorghumol, (3) 5alpha, 8alpha-epidioxyergost-22-en-3beta-ol, (4) Stearic acid, (5) Octadecane and (6) Epifriedelanol. CONCLUSION: Compound (1), (2) and (4) are isolated from this plant for the first time, and compound (3), (5) and (6) are isolated from genera Anoectochilus for the first time.
Assuntos
Orchidaceae/química , Plantas Medicinais/química , Ácidos Esteáricos/isolamento & purificação , Triterpenos/isolamento & purificação , Alcanos/química , Alcanos/isolamento & purificação , Ergosterol/análogos & derivados , Ergosterol/química , Ergosterol/isolamento & purificação , Estrutura Molecular , Ácido Oleanólico/análogos & derivados , Solventes/química , Ácidos Esteáricos/química , Triterpenos/químicaRESUMO
OBJECTIVE: To investigate the chemical constituents from Anoectochilus roxburghii. METHODS: The compounds were isolated and purified by repeated column chromatographies with silica gel, Macroporous resin and Sephadex LH-20, and their structures were identified by their physical and spectral datas. RESULTS: Ten compounds were isolated and elucidated as: beta-D-glucopyranosyl-(3R)-hydroxybutanolide (I), stearic acid (II), palmitic acid (III), beta-sitosterol (IV) and succinic acid (V), p-hydroxy benzaldehyde (VI), daucosterol (VII), and methyl 4-beta-D-glucopyranosyl-hutanoate (VIII); as well as p-hydroxy cinnamic acid (IX) and o-hydroxy phenol (X) were identified. CONCLUSION: Compound I ,VIII, X are firstly isolated from this species.
