Synthesis, acid-base behavior, and binding properties of 6-modified myo-inositol 1,4,5-tris(phosphate)s

J Med Chem. 1999 Nov 18;42(23):4824-35. doi: 10.1021/jm991084t.

Abstract

myo-Inositol 1,4,5-tris(phosphate) was modified at position 6. The analogues synthesized are reported in this publication are 6-deoxy-myo-inositol 1,4,5-tris(phosphate), 6-fluoro-6-deoxy-myo-inositol 1,4,5-tris(phosphate), epi-inositol 1, 4,5-tris(phosphate), and 6-amino-6-deoxy-myo-inositol 1,4, 5-tris(phosphate). These derivatives showed poor affinity for the Ins(1,4,5)P(3) receptors. The inframolecular acid-base behavior and the cooperative effects between the phosphate groups could help explain the loss of affinity of these 6-modified analogues.

MeSH terms

  • Adrenal Cortex / ultrastructure
  • Animals
  • Calcium Channels / metabolism
  • Cattle
  • Hydrogen-Ion Concentration
  • In Vitro Techniques
  • Inositol 1,4,5-Trisphosphate / analogs & derivatives*
  • Inositol 1,4,5-Trisphosphate / chemical synthesis
  • Inositol 1,4,5-Trisphosphate / chemistry*
  • Inositol 1,4,5-Trisphosphate / metabolism
  • Inositol 1,4,5-Trisphosphate Receptors
  • Magnetic Resonance Spectroscopy
  • Microsomes / metabolism
  • Potentiometry
  • Receptors, Cytoplasmic and Nuclear / metabolism
  • Stereoisomerism

Substances

  • Calcium Channels
  • Inositol 1,4,5-Trisphosphate Receptors
  • Receptors, Cytoplasmic and Nuclear
  • Inositol 1,4,5-Trisphosphate