Bioactive lipids from the sponge Spirastrella abata
作者:Kyoung Hwa Jang、Yoonyeong Lee、Chung J. Sim、Ki-Bong Oh、Jongheon Shin
DOI:10.1016/j.bmcl.2011.11.105
日期:2012.1
Three sphingosine 4-sulfates (1-3) and a lysophosphatidylglycerol (4) were isolated from the Korean sponge Spirastrella abata. The structures of these compounds were determined based on the combined results of spectroscopic analyses. Based on the results of combined synthesis and comparison of specific rotation and circular dichroism, the absolute configurations of 1-3 were found to be enantiomeric to the previously isolated metabolites. The configurations of 4 were also partially determined by similar chemical and spectroscopic methods. The compounds exhibited significant cytotoxicity and weak antimicrobial activity (1), as well as weak-to-moderate inhibitory activity against isocitrate lyase and Na+/K+-ATPase. A structure-activity relationship was found for the sphingosine 4-sulfates. (C) 2011 Elsevier Ltd. All rights reserved.
Configurational Analysis of Cyclopropyl Fatty Acids Isolated from <i>Escherichia coli</i>
作者:Laura J. Stuart、James P. Buck、Amy E. Tremblay、Peter H. Buist
DOI:10.1021/ol052550d
日期:2006.1.1
The absolute configuration of methyl lactobacillate and its 9,10 homologue, both isolated from Escherichia coli B-ATCC 11303, was found to be 11R,12S and 9R,10S, respectively.
HOFMANN; TAUSIG, Journal of Biological Chemistry, 1955, vol. 213, # 1, p. 425 - 432
作者:HOFMANN、TAUSIG
DOI:——
日期:——
Hofmann et al., Journal of Biological Chemistry, 1952, vol. 195, p. 473,479