Chemical and Pharmaceutical Bulletin
Online ISSN : 1347-5223
Print ISSN : 0009-2363
ISSN-L : 0009-2363
Flavonoids from Andrographis paniculata
MASANORI KUROYANAGI, MAKOTO SATO, AKIRA UENO, KOUZABURO NISHI
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Keywords: Andrographis paniculata, Acanthaceae, flavone glucoside, flavanone glucoside, andrographidine A, andrographidine B, 13C-NMR, methylglucopyranoside per-p-bromobenzoate, A-value
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1987 Volume 35 Issue 11 Pages 4429-4435

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Abstract
A new flavanone glucoside, named andrographidine A (1), and five new flavone glucosides, named andrographidines B (2), C (3), D (4), E (5) and F (6), were isolated from the root of Andrographis paniculata. Their structures were determined on the basis of spectral data, especially carbon-13 and proton nuclear magnetic resonance spectra, and chemical derivatization. They have uncommon O-substitution patterns involving 5-, 7-, 8-, 2'-, 3'-and 4'-O-substituents.
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© The Pharmaceutical Society of Japan
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