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  • Title: Andropanolide and isoandrographolide, minor diterpenoids from Andrographis paniculata: structure and X-ray crystallographic analysis.
    Author: Pramanick S, Banerjee S, Achari B, Das B, Sen AK, Mukhopadhyay S, Neuman A, Prangé T.
    Journal: J Nat Prod; 2006 Mar; 69(3):403-5. PubMed ID: 16562845.
    Abstract:
    Phytochemical investigation of the leaves of Andrographis paniculata has led to the isolation of a new labdane type diterpenoid, andropanolide (1), along with seven known diterpenoids including isoandrographolide (2), previously reported as a rearrangement product of andrographolide. The structures and stereochemistry of compounds 1 and 2 were established by X-ray crystallographic analysis.
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