A mixture of 8.0 g (0.02 Mol) 2-hydroxymethyl-5-octadecyloxy-4-pyranone, 4.8 g (0.04 Mol) (±)-1-phenylethylamine, 1.5 g Na2CO3, 10 mL water and 100 mL ethanol is boiled under reflux for 72 hours. After cooling the solvent and the excess of amine is removed under vacuum and the residue is mixed with water and extracted with dichloromethane. The organic phase is dried over Na2SO4, evaporated and the obtained resin is purified by column chromatography on silica gel with dichloromethane with 1-2% methanol to give a yellow oil, which is changing to wax-like consistency. IR (KBr): 1630 (C=O), MS (m/l) 497 (M+).
