Ingenane diterpenes from Euphorbia petiolata.
From the whole plants of Euphorbia petiolata, four new ingenane-type diterpenoids, 3,20-O-diacetylingenol 5-O-(2' E,4' Z)-tetradecadienoate (1), 5,20-O-diacetylingenol 3- O-(2' E,4' Z)-tetradecadienoate (2), ingenol 3-O-(2' E,4' Z)-tetradecadienoate (3), and 5,20-O-isopropylidenylingenol 3-O-(2' E,4' Z)-tetradecadienoate (4) were isolated. Their structures were elucidated by spectroscopic methods and chemical transformations.
Shi
Y P
YP
Institute of Organic Chemistry, State Key Laboratory of Applied Organic Chemistry at Lanzhou University, Lanzhou 730000, People's Republic of China.
Jia
Z J
ZJ
Ma
B
B
Saleh
S
S
Lahham
J
J