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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Synthesis of lysophosphatidylethanolamine analogs that inhibit renin activity.

A series of lysophosphatidylethanolamine analogs containing saturated and methylene-interrupted cis-olefinic fatty chains was synthesized by phosphorylation and phosphonylation of respective fatty alcohols. Arachidonyl- and linolenylphosphorylethanolamines (12, 13), arachidonyl (2-phthalimidoethyl)phosphonate (17), and arachidonyl (2-aminoethyl)phosphonate (18) were found to be effective inhibitors of the renin-renin substrate reaction in vitro; lysophosphatidylethanolamine analogs 14-16 of lesser unsaturation were either weakly active or inactive. In a preliminary study, intramuscular administration of 25 mg/kg/day of arachidonyl (2-aminoethyl)phosphonate (18) to the hypertensive rat caused pronounced reduction (50 mm) in blood pressure within 3 days; upon continued dosage (15 mg/kg/day) of 18 for an additional 4 days, plasma renin activity was found to be 16 ng/0.1 ml/15 hr as compared with 69 ng/0.1 ml/15 hr before initial drug administration. Arachidonic acid (3), arachidonyl alcohol (8), and several corresponding tetraenoid ester, amide, mesylate, and glyceryl ether derivatives (4-7, 10, 11), that are not phosphate or phosphonate esters, were found to exhibit negligible or modest inhibition of renin activity in vitro.[1]


  1. Synthesis of lysophosphatidylethanolamine analogs that inhibit renin activity. Turcotte, J.G., Yu, C.S., Lee, H.L., Pavanaram, S.K., Sen, S., Smeby, R.R. J. Med. Chem. (1975) [Pubmed]
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