5-(Tetradecyloxy)-2-furancarboxylic acid and related hypolipidemic fatty acid-like alkyloxyarylcarboxylic acids
作者:Roger A. Parker、Takashi Kariya、J. Martin Grisar、Vladimir Petrow
DOI:10.1021/jm00216a009
日期:1977.6
5-(Tetradecyloxy)-2-furancarboxylic acid (91, RMI 14514) was found to lower blood lipids and to inhibit fatty acid synthesis with minimal effects on liver weight and liver fat content. This fatty acid-like compound represents a new class of hypolipidemic agent; it is effective in rats and monkeys. The compound resulted from discovery of hypolipidemic activity in certain beta-keto esters, postulation
作者:Jade E. LaDow、David C. Warnock、Kristina M. Hamill、Kaitlin L. Simmons、Robert W. Davis、Christian R. Schwantes、Devon C. Flaherty、Jon A.L. Willcox、Kelsey Wilson-Henjum、Kevin L. Caran、Kevin P.C. Minbiole、Kyle Seifert
DOI:10.1016/j.ejmech.2011.06.026
日期:2011.9
A series of cationic amphiphiles, each with an aromatic core, was prepared and investigated for antimicrobial properties. The synthesized amphiphiles in this study are bicephalic (double-headed) in that they each possess two trimethylammonium head groups and a single linear alkoxy tail. Minimum inhibitory and minimum bactericidal concentrations of these amphiphiles were in the low micromolar range. Antimicrobial activities are highly sensitive to the chain length of the hydrophobic region, and modestly reliant on the relative positioning of the head groups on the aromatic core. These trends were more pronounced in time kill assays, wherein longer chain compounds required significantly shorter times to completely kill bacteria. Microscopy suggested that the mode of cell death was lysis. Strong inhibition was observed with both biscationic compounds and monocationic comparisons against Gram-positive bacteria: only biscationic amphiphiles maintained good activity versus the Gram-negative bacteria tested. These observations provide direction for future antimicrobial structural investigations. (C) 2011 Elsevier Masson SAS. All rights reserved.