Special Metabolites Isolated from Ouratea cuspidata Engl. (Ochnaceae)

被引：1
|
作者：
Suzart, L. R. [1 ]
Fidelis, Q. C. [1 ]
de Carvalho, M. [1 ]
Kaplan, M. A. C. [2 ]
机构：
[1] Univ Fed Rural Rio de Janeiro, Dept Quim, ICE, PGQO, Campus Seropedica Br 465 Km 07, BR-23890000 Seropedica, RJ, Brazil
[2] Univ Fed Rio de Janeiro, Inst Pesquisa Prod Nat, CCS, Bloco H,Av Carlos Chagas Fo 373,Cidade Univ, BR-21941902 Rio De Janeiro, RJ, Brazil
来源：
REVISTA VIRTUAL DE QUIMICA | 2016年 / 8卷 / 01期
关键词：
Steroids; triterpenes; biflavonoids; maslinic acid; flavonoid glycosides;
D O I：
10.5935/1984-6835.20160019
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Chromatographic fraction of extracts from the leaves and branches of Ouratea cuspidate (Ochnaceae) allowed the isolation and identificationof the mistures: of sitosterol and stigmasterol; two news maslinic acid ester derivative: 3-beta-Ostearoyl/palmitoyl-maslinic acid and 2-alpha-O-stearoyl/palmitoyl-maslinic acid, and lupeol, aand alpha-amyrin, besides the pure compounds: maslinic acid, amentoflavone and putraflavone, flavonoids 4', 5,7-trihydroxy-3', 5'-dimethoxy-flavone, 3,5,7,4'-tetrahydroxy-3'-methoxy-flavone, 5,7,4'-trihydroxy-3'-methoxy-3-O-beta-D-galactopyranosyl-flavone as well as the carbohydrate methyl-beta-D-glucopyranoside. The structures of compounds were deduced by spectral data analysis of NMR H-1, C-13 (HSQC, HMBC, COSY) besides ESI-MS/MS, GC/MS and comparison with literature data.
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页码：288 / 295
页数：8
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