Andropanolide and isoandrographolide, minor diterpenoids from Andrographis paniculata: structure and X-ray crystallographic analysis.
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.
Indian Institute of Chemical Biology, Kolkata, India.
Swapan
S
Pramanick
Sukdeb
S
Banerjee
Basudeb
B
Achari
Binayak
B
Das
Ashis K
AK
Sen
Sibabrata
S
Mukhopadhyay
Alain
A
Neuman
Thierry
T
Prangé
D035685:Andrographis / Q000737:chemistry*; D018360:Crystallography, X-Ray; D004224:Diterpenes / Q000737:chemistry / Q000302:isolation & purification*; D007194:India; D008968:Molecular Conformation; D015394:Molecular Structure; D010946:Plants, Medicinal / Q000737:chemistry*; D013237:Stereoisomerism
D004224:Diterpenes; C510040:andropanolide; C030419:andrographolide