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  • 1
    ISSN: 0170-2041
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Studien über die Bestandteile von Jateorhiza palmata Miers (Colombo-Wurzel), II. - Isolierung und Struktur von sechs neuen Furanoid-Diterpen-Glucosiden: Palmatosid B, C, D, E, F und GSechs neue als Palmatosid B(1), C(2), D(3) E(4), F(5) und G(6) bezeichnete Furanoid-Diterpen-Glucoside wurden aus der getrockneten Wurzel von Jateorhiza palmata Miers (Colombo-Wurzel) isoliert. Auf Grund von chemischen und spektroskopischen Beweisen wurden die Strukturen von 1, 2, 3, 4, 5 und 6 als 4-O-(β-D-Glucopyranosyl)chasmanthin, 4-O-(β-D-Glucopyranosyl)columbin, 4-O-(β-D-Glucopyranosyl)isocolumbin, 4-O-(β-D-Glucopyranosyl)isojateorin, 4-O-(β-D-Glucopyranosyl)jateorin, und [2S-(2α,4aα,6aβ,10aβ,10bα)]-2-(3-Furanyl)-6a-(β-D-glucopyranosyloxymethyl)-1,2,4a,5,6,6a,7,10,10a,10b-decahydro-10b-methyl-4H-naphtho[2,1-c]pyran-4,7-dion ermittelt.
    Notes: Six new furanoid diterpene glucosides, named palmatoside B(1), C(2), D(3), E(4), F(5), and G(6) were isolated from the dried roots of Jateorhiza palmata Miers (Colombo root). The structures were elucidated by chemical and spectroscopic evidence to be 4-O-(β-D-glucopyranosyl)chasmanthin, 4-O-(β-D-glucopyranosyl)columbin, 4-O-(β-D-glucopyranosyl)isocolumbin, 4-O-(β-D-glucopyranosyl)isojateorin, 4-O-(β-D-glucopyranosyl)jateorin, and [2S-(2α,4aα,6aβ,10bα,10bα)]-2-(3-furanyl)-6a-(β-D-glucopyranosyloxymethyl)-1,2,4a,5,6,6a,7,10,10a,10b-decahydro-10b-methyl-4H-naphtho[2,1-c]pyran-4,7-dione, respectively.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 0170-2041
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Studien über die Bestandteile von Jateorhiza palmata Miers (Colombo-Wurzel), I. - Isolierung und Struktur eines neuen Furanoid-Diterpenglucosids (Palmatosid A)Einschließlich der fünf bereits bekannten Diterpenoide Columbin (2), Isocolumbin (3), Chasmantin (4), Palmarin (5) und Isojateorin (6), ließ sich ein neues, Palmatosid A (1) genanntes Furanoid-Diterpenglucosid aus der getrockneten Wurzel von Jateorhiza palmata Miers (Colombo-Wurzel) isolieren. Auf Grund von chemischen und spektroskopischen Beweisen wurde die Struktur von 1 als 4-O-(β-D-Glucopyranosyl)palmarin ermittelt.
    Notes: In addition to five already known diterpenoids, columbin (2), isocolumbin (3), chasmanthin (4), plamarin (5), and isojateorin (6), a new furanoid diterpene glucoside named plamatoside A (1) was isolated from the dried roots of Jateorhiza palmata Miers (Colombo root). The structure of 1 was elucidated by chemical and spectroscopic evidence to be 4-O-(β-D-glucopyranosyl)palmarin.
    Additional Material: 2 Tab.
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  • 3
    ISSN: 0170-2041
    Keywords: Chasmanthin ; Palmarin ; Palmatoside A and B ; Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The crystal structure of palmarin (1) has been determined by X-ray diffraction. The ring C conformation was confirmed to be that of a half chair, and the same result was obtained from 1H-NMR spectrometry. The ring C of chasmanthin (2) and glucosides of 1 and 2 (palmatoside A, and B) was also decided as a half boat by analysis of the 1H-NMR spectra.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
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