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A flavone and an unusual 23-carbon terpenoid from Andrographis paniculata
Muntha K Reddy1, Mopuru V B Reddy, Duvvuru Gunasekar
1Natural Products Division, Department of Chemistry, Sri Venkateswara University, Tirupati 517 502, India.
Phytochemistry
|March 22, 2003
Abstract:
Phytochemical investigation of the roots and aerial parts of Andrographis paniculata Nees yielded a new flavone, 5-hydroxy-7,2',6'-trimethoxyflavone and an unusual 23-carbon terpenoid, 14-deoxy-15-isopropylidene-11,12-didehydroandrographolide together with five known flavonoids and four known diterpenoids. The structures of these compounds were determined on the basis of spectral and chemical studies.