Va. Raldugin et al., TRITERPENOIDS FROM ABIES SPECIES .19. 17,14-FRIDOLANOSTA-7,14,22,24-TETRAEN-26,23-OLIDE, A NEW LACTONE FROM THE NEEDLES OF THE SIBERIAN FIR, Russian chemical bulletin, 45(11), 1996, pp. 2651-2653
A new triterpenoid lactone with a reported rearranged lanostane skelet
on was isolated from the neutral fraction of the extract from the need
les of Siberian fir. Its structure was established on the basis of che
mical transformations and NMR spectra using two-dimensional (COSY, COL
OC) NMR spectroscopy.