Isolation and structure elucidation of linolipins C and D, complex oxylipins from flax leaves
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- 作者：Ivan R. Chechetkin ; Alex ; er S. Blufard ; Bulat I. Khairutdinov ; Fakhima K. Mukhitova ; Svetlana S. Gorina ; Andrey Y. Yarin ; Larisa L. Antsygina ; Alex ; er N. Grechkin
- 关键词：SSSOQCOUWWCQSF-MNNDCQRZSA-N ; SBOCFWSPOCJDHY-NXTVNIMXSA-N
- 刊名：Phytochemistry
- 出版年：December, 2013
- 年：2013
- 卷：96
- 期：Complete
- 页码：110-116
- 全文大小：470 K
文摘
Two complex oxylipins (linolipins C and D) were isolated from the leaves of flax plants inoculated with phytopathogenic bacteria Pectobacterium atrosepticum. Their structures were elucidated based on UV, MS and NMR spectroscopic data. Both oxylipins were identified as digalactosyldiacylglycerol (DGDG) molecular species. Linolipin C contains one residue of divinyl ether (蠅5Z)-etherolenic acid and one 伪-linolenate residue at sn-1 and sn-2 positions, respectively. Linolipin D possesses two (蠅5Z)-etherolenic acid residues at both sn-1 and sn-2 positions. The rapid formation (2-30 min) of linolipins C and D alongside with linolipins A and B occurred in the flax leaves upon their damage by freezing-thawing.