1259-10-5Relevant articles and documents
3-EPI-CYCLOLAUDENOL AND KNOWN TRITERPENES FROM EUPHORBIA CAUDICIFOLIA
Govardhan, Ch.,Prasad Reddy, R.,Sundararamaiah, T.
, p. 411 - 414 (1984)
A new tetracyclic triterpene, 3-epi-cyclolaudenol (24-methyl-9,19-cyclolanost-25-en-3α-ol), cyclolaudenol and cycloartenol were isolated from the ethanolic extract of the latex of Euphorbia caudicifolia, and cycloartenol and 3-ketomethylursolate were obtained from the ethanolic extract of the stem of this plant. - Keywords: Euphorbia caudicifolia; Euphorbiaceae; latex; stem; tetracyclic triterpenes; pentacyclic triterpenes; 3-epi-cyclolaudenol; cyclolaudenol; cycloartenol; 3-ketomethylursolate.
Conformational Analysis of Cycloartenol, 24-Methylenecycloartanol and Their Derivatives
Yoshida, Kumi,Hirose, Yoshihiko,Imai, Yutaka,Kondo, Tadao
, p. 1901 - 1912 (2007/10/02)
A conformational analysis of cycloartenol, 24-methylenecycloartenol and their derivatives was carried out in the solution and the solid state by an NMR study and X-ray crystallographic analysis, respectively.Complete assignments of the 1H NMR spectra of these compounds were made in order to elucidate the conformation involving the ring system and side chain.Rings A to C had a chair-halfchair-boat conformation, and the side chain had a zig-zag conformation.