RESUMEN
OBJECTIVE: To study the chemical constituents in the volatile oil from fruits of Alpinia oxyphylla. METHOD: Using GC-MS to identify the constituents. RESULT AND CONCLUSION: Sixty-four compounds were identified on the basis of GC-MS, the main ones being p-cymene, valence, linalool, myrtenal, alpha-pinene, beta-pinene, furopelargone A and terpinen-4-ol. Three sesquiterpenes valencene, nootkanone and nootkanol have been isolated from the CHCl3 extract as check, of these 64 identified compounds linalyl oxide, valencene, bakkenolide A, furopelargone A and 3-hydroxycalamenene are reported for the first time.
Asunto(s)
4-Butirolactona/análogos & derivados , Alpinia/química , Monoterpenos , Aceites Volátiles/química , Extractos Vegetales/química , Plantas Medicinales/química , 4-Butirolactona/aislamiento & purificación , Cimenos , Frutas/química , Aceites Volátiles/aislamiento & purificación , Extractos Vegetales/aislamiento & purificación , Sesquiterpenos , Terpenos/aislamiento & purificaciónRESUMEN
AIM: To study the chemical constituents of the seeds from Artabotrys hexapetalus (L.f.) Bhandari (Annonaceae). METHODS: Various chromatographic techniques were used to separate and purify the constituents. Their structures were elucidated on the physico-chemical properties and spectral data. RESULTS: Eight compounds were isolated from the seeds of A. hexapetalus. They were identified as four neolignans: isoamericanin A (1), isoamericanol A (2), americanin B (3) and artabotrycinol (4), a semiterpenoid: (R)-artabotriol (5) and others: palmitic acid (6), beta-sitosterol (7) and daucosterol (8). CONCLUSION: Artabotrycinol (4) and (R)-artabotriol (5) are new compounds. Three other neolignans were isolated from this plant for the first time.
Asunto(s)
Annonaceae/química , Butanoles/aislamiento & purificación , Dioxanos/aislamiento & purificación , Plantas Medicinales/química , Butanoles/química , Dioxanos/química , Dioxinas/química , Dioxinas/aislamiento & purificación , Estructura Molecular , Semillas/químicaRESUMEN
Annonaceous acetogenin (or polyketide) is a kind of potential antineoplastic agents from Annonaceae plants. Two new acetogenins, Muricatalicin (I) and muricatalin (VI), a mesitoate of a new acetogenin, annonacin-B mesitoate (Vb), and three known acetogenins, annonacin (II), annonacin-A (III) and annonacin-10-one (IV) have been isolated from Annona muricata L. The structures and relative stereochemistry of I, VI and Vb were elucidated on the basis of spectral analysis and examination of their acetates and/or mesitoate.