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SAPELENIN E AND F: NEW ACYCLIC TRITERPENOIDS FROM THE STEM BARK OF ENTANDROPHRAGMA CYLINDRICUM
Abstract
New acyclic triterpenoids, sapelenin E (1) and F (2) were isolated from the stem bark of Entandrophragma cylindricum. Their full structure including absolute configuration in sapelenin E (1) were determine from spectroscopic data and by chemical transformation.
KEY WORDS: Entandrophragma cylindricum, Sapelenin, Meliaceae, Acyclic triterpenoids
Bull. Chem. Soc. Ethiop. 2005, 19(2), 227-231.
KEY WORDS: Entandrophragma cylindricum, Sapelenin, Meliaceae, Acyclic triterpenoids
Bull. Chem. Soc. Ethiop. 2005, 19(2), 227-231.