Abstract
Phytochemical investigation of Chorisia chodatii Hassl. leaves led to the isolation of an unusual rearranged megastigmane glycoside; chodatiionoside A (1) and another new megastigmane glycoside; chodatiionoside B (2), together with three known megastigmane glycosides (3-5) and one known flavonoid glycoside (6). Their structures were elucidated by spectroscopic methods including 1D and 2D NMR experiments (1H, 13C, DEPT, COSY, HSQC and HMBC) in combination with HR-ESI-MS, CD and modified Mosher's method. As a result, chodatiionoside A has been elucidated as a first example of an unusual rearranged form of megastigmane.
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