P. Pradhan et al., 2 PHYTOECDYSONES FROM TINOSPORA-CORDIFOLIA - STRUCTURAL ASSIGNMENTS BY 2D NMR-SPECTROSCOPY, Indian journal of chemistry. Sect. B: organic chemistry, including medical chemistry, 36(10), 1997, pp. 958-962
Two phytoecdysones viz. ecdysterone 1 and makisterone A 2 have been is
olated as their acetates from the n-BuOH extracts of the medicinal pla
nt Tinospora cordifolia stems. The structures and complete NMR assignm
ents of the phytoecdysones have been achieved by extensive 1D and 2D N
MR studies.