Notes
Cholestane Glycosides from the Bulbs of Galtonia candicans and Their Cytotoxicity
2001 Volume 49 Issue 8 Pages 1042-1046
Details
2001 Volume 49 Issue 8 Pages 1042-1046
Further search for cytotoxic compounds contained in the bulbs of Galtonia candicans (Liliaceae) led to the isolation of four potent cytotoxic cholestane glycosides (1-4) based upon 3β, 16β, 17α-trihydroxycholest-5-en-22-one, three of which (2-4) have not been reported previously. A new cholestane bisdesmoside (5) and a new rearranged cholestane glycoside (6) were also isolated. The structural assignment of the new constituents was carried out by spectroscopic analysis and a few chemical transformations.
