Acetophenone derivatives and sesquiterpene from Euphorbia ebracteolata.
Two new acetophenone derivatives and a new sesquiterpene, along with four known acetophenone compounds, were isolated from the roots of Euphorbia ebracteolata. The structures of the new compounds were identified as 2,2',4,4'-tetrahydroxy-6,6'-dimethoxy-3,3'-dimethyl-7,5'-bisacetophenone, 2,4-dihydroxy-6-methoxy-3-methylacetophenone 4-O-alpha-L-arabinofuranosyl-(1-->6)-beta- D-glucopyranoside and decahydro-1a,4a,7,7-tetramethyl-1H-cycloprop[e]azulene-2,5-diol (1a R,2 R,4a S,5 S,7a R,7b R) using 1D and 2D NMR spectroscopy and X-ray crystallography.
Yin
Zhi-Qi
ZQ
Department of Phytochemistry, China Pharmaceutical University, Nanjing 210009, P. R. China.
Fan
Chun-Lin
CL
Ye
Wen-Cai
WC
Jiang
Ren-Wang
RW
Che
Chun-Tao
CT
Mak
Thomas C
TC
Zhao
Shou-Xun
SX
Yao
Xin-Sheng
XS
D000098:Acetophenones / Q000737:chemistry; D018360:Crystallography, X-Ray; D028481:Euphorbia; D006801:Humans; D008517:Phytotherapy; D010936:Plant Extracts / Q000737:chemistry*; D018517:Plant Roots; D012717:Sesquiterpenes / Q000737:chemistry
D000098:Acetophenones; D010936:Plant Extracts; D012717:Sesquiterpenes; C038699:acetophenone