RESUMO
During the phytochemical investigation of Haplophyllum acutifolium, two alkaloids named haplophytin-A (1) and B (2) have been obtained. In addition, some known constituents: flindersine (3), kusunokinin (4), beta-sitosterol, oleanolic acid, cholesterol and hexadecanoic acid, have also been obtained. The known constituents have never been obtained from this source. The structures of all the isolated constituents were elucidated by spectroscopic means. However, the structures of constituents 1 and 2 were further confirmed through HMBC technique.
Assuntos
Alcaloides/isolamento & purificação , Plantas/química , Alcaloides/química , Colesterol/química , Colesterol/isolamento & purificação , Espectroscopia de Ressonância Magnética , Ácido Oleanólico/química , Ácido Oleanólico/isolamento & purificação , Paquistão , Ácido Palmítico/química , Ácido Palmítico/isolamento & purificação , Sitosteroides/química , Sitosteroides/isolamento & purificação , Espectrofotometria InfravermelhoRESUMO
Phytochemical investigations of the fruits of Stocksia brauhica (Sapindaceae) resulted in the isolation of a new acylated flavone glycoside. Its structure of the new compound brauhenefloroside D (1) was established as 3-O-[(alpha-L-rhamnopyranosyl)oxy]-7-O-[(acetyl)-beta-D-glucopyranosyl (1 --> 4)]-[6-O-(4-hydroxy-E-cinnamoyl)-beta-D-glucopyranosyl-(1 --> 2)-alpha-L-rhamnopyranosyl)-oxy]-kaempferol. The structure elucidation of the new compound was based primarily on 1D and 2D NMR analysis, including COSY, HMBC and HMQC correlations.
Assuntos
Flavonas/isolamento & purificação , Frutas/química , Glicosídeos/isolamento & purificação , Sapindaceae/química , Trissacarídeos/isolamento & purificação , Acilação , Flavonas/química , Glicosídeos/química , Espectroscopia de Ressonância Magnética , Trissacarídeos/químicaRESUMO
The essential oils of SOLVIA CABULICO Benth. (Labiatae) collected in July, 1996 (sample A), and June, 1997 (sample B), were isolated by hydrodistillation and analyzed by means of GC and GC/MS. The oils were rich in monoterpenes. Two oxygenated monoterpenes, alpha-thujone (51.3% for sample A and 34.4% for sample B) and camphor (24.0% for sample A and 22.6% for sample B) constituted about 75% and 57% of these oils, respectively. The other constituents of the oils were: alpha-pinene, sabinene, camphene, beta-pinene, myrcene, P-cymene, limonene, 1,8-cineole, gamma-terpinene, beta-thujone, borneol, 4-terpineol, alpha-terpineol, caryophyllene, bornyl acetate, 9-aristolen-1-alpha-ol, caryo-phyllene oxide and valaranone.