Publication Type |
Journal Article |
Title |
12,17-Cyclojatrophane and Jatrophane Constituents of Euphorbia welwitschiie |
Authors |
Mariana A. Reis Vânia André M. Teresa Duarte Hermann Lage Maria-Jose U. Ferreira |
Groups |
BioMol |
Journal |
JOURNAL OF NATURAL PRODUCTS |
Year |
2015 |
Month |
November |
Volume |
78 |
Number |
11 |
Pages |
2684-2690 |
Abstract |
Euphowelwitschines A (1) and B (2), isolated from a methanolic extract of Euphorbia welwitschii, exhibit a rare combination of structural features in having a 5/8/8 fused-ring system and a 12,15-ether bridge. Moreover, the isolation of the additional new compounds welwitschene (3) and epoxywelwitschene (4) has provided insights into the biogenetic pathway of 12,17-cyclojatrophanes. The structures of 1-4 were determined by spectroscopic methods inclusive of 1D and 2D NMR experiments and X-ray crystallography for compounds 1 and 2. Preliminary information on the selective antiproliferative activity of compounds 1-4 is also described. |
DOI |
http://dx.doi.org/10.1021/acs.jnatprod.5b00631 |
ISBN |
|
Publisher |
AMER CHEMICAL SOC |
Book Title |
|
ISSN |
0163-3864 |
EISSN |
1520-6025 |
Conference Name |
|
Bibtex ID |
ISI:000366005800022 |
Observations |
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