Va. Alfonsov et al., The first example of a tweezer-like structure in diterpene derivatives of the kaurane series, MENDELEEV C, (5), 2000, pp. 177-177A
The first compound with a tweezer-like structure in diterpene derivatives o
f the kaurane series was obtained in the reaction of the acid chloride of i
sosteviol with diethylene glycol.