Two New Flavonoids from Andrographis rothii

Two new flavonoids, 5, 7, 2′, 5′-tetramethoxyflavanone (1) and 5-hydroxy-7, 2′-dimethoxyflavone (2), together with two known flavones, skullcapflavone I (3) and echioidin (4) were isolated from the whole plant of Andrographis rothii. The structures of the new compounds were established by extensive...

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Veröffentlicht in:	Chemical & Pharmaceutical Bulletin 2003, Vol.51(2), pp.191-193
Hauptverfasser:	Reddy, Muntha Kesava, Reddy, Mopuru Vijaya Bhaskar, Jayakrishna, Galla, Gunasekar, Duvvuru, Caux, Cristelle, Bodo, Bernard
Format:	Artikel
Sprache:	eng
Schlagworte:	Acanthaceae Andrographis Andrographis rothii Biochemistry Biochemistry, Molecular Biology Biological and medical sciences flavonoid Flavonoids - chemistry Flavonoids - isolation & purification General pharmacology Life Sciences Medical sciences Pharmacognosy. Homeopathy. Health food Pharmacology. Drug treatments Plant Extracts - chemistry Plant Extracts - isolation & purification Plant Structures
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Beschreibung
Zusammenfassung:	Two new flavonoids, 5, 7, 2′, 5′-tetramethoxyflavanone (1) and 5-hydroxy-7, 2′-dimethoxyflavone (2), together with two known flavones, skullcapflavone I (3) and echioidin (4) were isolated from the whole plant of Andrographis rothii. The structures of the new compounds were established by extensive one- and two-dimensional (1D- and 2D-) NMR spectral studies.
ISSN:	0009-2363 1347-5223
DOI:	10.1248/cpb.51.191