Acetic Acid → N6-(1-Oxohexadecyl)-L-lysine

To the solution of L-lysine (1 mmol) in water (2 ml) and triethylamine (0.27 ml, 2 mmol) 1 mmol of succinimidyl palmitate (suspended in 2 ml of acetone) was added at room temperature under stirring. Stirring of the reaction mixture was continued for 4h. Triethylamine was removed under reduced pressure, the precipitate was collected by filtration, washed with water and ethanol, crystallized from glacial acetic acid giving an 86% yield of the title compound. Analysis data are given in Table 2.