Studies on the Constituents of Gardenia Species. III. New Iridoid Glycosides from the Leaves of Gardenia jasminoides cv. fortuneana HARA
نویسندگان
چکیده
منابع مشابه
Iridoid-specific glucosyltransferase from Gardenia jasminoides.
Iridoids are one of the most widely distributed secondary metabolites in higher plants. They are pharmacologically active principles in various medicinal plants and key intermediates in the biosynthesis of monoterpenoid indole alkaloids as well as quinoline alkaloids. Although most iridoids are present as 1-O-glucosides, the glucosylation step in the biosynthetic pathway has remained obscure. W...
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Five new iridoid glycosides, (8Z)-ligstroside (1), (8Z)-nüzhenide (3), 6'-O-alpha-D-glucopyranosylsyringopicroside (4), 3'-O-beta-D-glucopyranosylsyringopicroside (5) and 4'-O-beta-D-glucopyranosylsyringopicroside (6) were isolated, together with a known one, (8E)-nüzhenide (2), from the leaves of Syringa reticulata. Their structures were established on the basis of chemical and spectral data. ...
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Three new iridoids, Gardenal-I (1), Gardenal-II (2) and Gardenal-III (3), together with nine known iridoid glycosides; geniposide (4), 6-β-hydroxy geniposide (5), 6-α-hydroxy geniposide (6), 6-α-methoxy geniposide (7), feretoside (8), genipin-1-β-gentiobioside (9), shanzhiside (10), lamalbidic acid (11) and picrocrocinic acid (12) were isolated from EtOH extract of G. gasminoides. The structure...
متن کاملStudies of the constituents of Gardenia species. II. Terpenoids from Gardeniae Fructus.
Four new terpenoids, gardenate A (1), 2-hydroxyethyl gardenamide A (2), (1R,7R,8S,10R)-7,8,11-trihydroxyguai-4-en-3-one 8-O-beta-D-glucopyranoside (3) and Jasminoside F (4), were isolated from Gardeniae Fructus. Their structures were established on the basis of spectral analysis.
متن کاملSelective Extraction of Gardenia Yellow and Geniposide from Gardenia jasminoides by Mechanochemistry.
A novel method for the selective extraction of gardenia yellow and geniposide from Gardenia Jasminoides, based on a mechanochemical method is described. Without the need of complex separation techniques, gardenia yellow compliant with the national standard could be extracted in a simple fashion. The optimal ball-milling conditions determined were as follows: 30% g/g. active carbon milling at 20...
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ژورنال
عنوان ژورنال: Chemical and Pharmaceutical Bulletin
سال: 2003
ISSN: 0009-2363,1347-5223
DOI: 10.1248/cpb.51.1417