1,5-GL was dissolved in 8 equivalents of pyridine and 4 equivalents of 4-dimethylaminopyridine (DMAP). 1,5-GL, being a hydrophilic compound, could dissolve in the pyridine solution containing DMAP. It was then suspended in toluene and reacted by adding 6 equivalents of various fatty acyl chlorides and stirring at room temperature for one day (Scheme 1). The compound with capric acid (C10GL) and the compound with behenic acid (C22GL) required purification using silica gel column chromatography, while the other compounds were successfully isolated and purified using crystallizations. The homemade behenoyl chloride was colored, and the color remained after purification of the product, C22GL, by column chromatography. Therefore, the gel during gelation tests was colored.