Biologically active ether lipids. Biotransformation of rac-1(3)-O-alkylglycerols in cell suspension cultures of rape and semisynthesis of 1-O-alkyl-2-palmitoyl-sn-glycero-3-phospho-(N-palmitoyl)ethanolamines, potent antitumor agents.
S S Apte, N Weber, H K Mangold
文献索引:FEBS Lett. 265(1-2) , 104-6, (1990)
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摘要
Biotransformation of rac-1(3)-O-hexadecylglycerol by photomixotrophic rape (Brassica napus) cells in suspension culture leads to 1-O-hexadecyl-2-acyl-sn-glycero-3-phosphocholines and small proportions of other ether lipids, e.g. 1-O-hexadecyl-2-acyl-sn-glycero-3-phosphoethanolamines. Reaction of the hexadecylacyl-glycerophosphocholines with ethanolamine in the presence of phospholipase D from Streptomyces chromofuscus yields additional hexadecylacylglycerophosphoethanolamines. Partial hydrolysis of the combined hexadecylacylglycerophosphoethanolamines followed by reacylation of the resulting lyso compound with palmitic anhydride gives 1-O-hexadecyl-2-palmitoyl-sn-glycero-3-phospho-(N-palmitoyl) ethanolamine, a nontoxic ether glycerophospholipid with antitumor activity. The corresponding 1-O-tetradecyl,1-O-octadecyl, and 1-O-[(Z)-9'-octadecnyl] derivatives are prepared similarly.
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