New Guaianolides and Farnesol Derivatives from Arctotis arctotoides1.
The aerial parts of ARCTOTIS ARCTOTOIDES afforded eight known sesquiterpene lactones and three new ones, the 11beta,13-dihydroguaianolides 9 and 10 as well as the chlorohydrine 8. Furthermore two 2Z-farnesol derivatives 12 and 13 were isolated. The structures were elucidated by highfield (1)H-NMR. The stereochemistry of several compounds has been revised.
Dahmy
S E
SE
Pharmacognosy Dept., Zagazig University, Egypt.
Sarg
T
T
Salem
S A
SA
Jakupovic
J
J
Bohlmann
F
F