New catharanthusopimaranoside A and B from hairy root cultures of Catharanthus roseus
作者:I. M. Chung、M. Ali、S. C. Chun、K. Y. San、C. A. M. Peebles、A. Ahmad
DOI:10.1007/s10600-008-9096-x
日期:2008.7
Two new compounds catharanthusopimaranoside A (1) and catharanthusopimaranoside B (2) along with three known compounds have been isolated from the hairy root cultures of Catharanthus roseus. Their structures have been elucidated with the help of 500 MHz NMR using 1D and 2D spectral methods viz: NMR, 1H-1H COSY, 1H-13C HETCOR, etc., and DEPT aided by EIMS, FABMS, and IR spectroscopy.