Synthesis and proaggregatory activity of 1-O-(2-methyloctadecyl)-2-O-acetyl-rac-glycero-3-phosphocholine

  • Schmid B
  • Ostermann G
  • Kertscher H
  • 2


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Racemic 1-O-(2-methyloctadecyl)-2-O-acetyl-glycero-3-phosphocholine, a branched chain PAF species, was prepared by chemical synthesis and investigated for biological activity on human blood platelets in vitro. The synthesis started from 2-O-benzylglycerol and 2-methyloctadecyl-1-methyl sulfonate and was accomplished in five reaction steps. A comparison with 'octadecyl-rich' PAF showed that the PAF species described here exerts a 22-fold weaker proaggregatory activity. Based on [3H]PAF-binding studies, an obstruction of PAF-binding or the signal transduction by the branched alkyl chain in C-1 position of the glycerol backbone is suggested. © 1991.

Author-supplied keywords

  • chemical synthesis
  • human platelet aggregation
  • platelet-activating factor (PAF) species

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  • B. Schmid

  • G. Ostermann

  • H. P. Kertscher

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