Ig. Collado et al., INHIBITION OF BOTRYTIS-CINEREA BY NEW SESQUITERPENOID COMPOUNDS OBTAINED FROM THE REARRANGEMENT OF ISOCARYOPHYLLENE, Journal of natural products, 57(6), 1994, pp. 738-746
A careful study of the acid-catalyzed cyclization of isocaryophyllene
has provided new information on the reaction mechanism. A novel sesqui
terpene skeletal type has resulted from unusual rearrangements of isoc
aryophyllene. The alcohols ginsenol [9] and 4 beta,8 ramethyl-11-hydro
xytricyclo[6,2,1,0(4,11)]undecane [10] were found to inhibit the growt
h of Botrytis cinerea in vitro.