An improved total synthesis of the emetic toxin cereulide and
the preparation of four lysine-linked cereulide analogues is described.
The cereulide analogues are prepared by replacing one of the amino
acid residues in cereulide with lysine. The cereulide analogues
demonstrate ionophoric activity towards alkali metal ions and inorganic
ammonium ions, and are currently being used to develop an enzyme-linked
immunosorbent assay for cereulide.
cereulide -
Bacillus cereus
- peptide synthesis - ionophore -
l-O-lysine