collected and converted to methyl esters using sodium methoxide. The methyl esters were identified by co-chromatography with reference compounds.
Glycerol-1,3-dimyristate-2-laurate :Glycerol-1,3-dimyristate (0.02 g, 0.03 mmol) was reacted with lauryl chloride as described above to obtain, after t.1.c. separation, 0.03g of glycerol-l,3-dimyristate-2-laurate (010 yield: 92.0). Fatty acids present at the sn-2 position: O/O W/W 98.2 C12:o and 1.8 C14:o.Glycerol-l,3-dimyristate-2-palmitate : Glycerol-l,3-dimyristate (0.04 g, 0.08 mmol) was reacted with palmityl chloride as described above to obtain, after t.1.c. separation, 0.04 g of glycerol-l,3-dimyristate-2-palmitate (010 yield: 88.3). Fatty acids present at the sn-2 position: Yo w/w, 99.1 C16:o and 0.9 C14:o.Glycerol-l,3-dipalmitate-2-myristate : Glycerol-1,3-dipalmitate (0.03 g, 0.06 mmol) was reacted with myristyl chloride as described above to obtain, after t.1.c. separation, 0.04 g of glycerol-1,3-dipalmitate-2myristate (010 yield: 98.9). Fatty acids present at the sn-2 position: 010 w/w, 98.8 C14:o and 1.2 C16:o.
Glycerol-1,3-distearate-2-myristate :Glycerol-l,3-distearate (0.02 g, 0.02 mmol) was reacted with myristyl chloride as described above to obtain, after t.1.c. separation, 0.03 g of glycerol-1,3-distearate-2-myristate (010 yield: 89.0). Fatty acids present at the sn-2 position: 010 W/W, 98.4 C14:o and 1.6 C18:o.
Glycerol-1,3-distearate-2-oleate :Glycerol-1,3-distearate (0.01 g, 0.02 mmol) was reacted with oleoyl chloride as described above to obtain, after t.1.c. separation, 0.01 g of glycerol-1,3-distearate-2-oleate (010 yield 95.1). The GLC r.t. was 18.2 min. Fatty acids present at the sn-2 position: 010 w/w, 98.7C18:lr 0.8 and the rest were C16:o and C14:o impurities. L i t e r a t u r e B. E Daubert and C. C. King, Chem. Rev. 29,269 (19411. L. Hartman, Chem. Rev. 58,845 [1958]. R H. Mattson and R. A. Vb'olpenhcin, J. Lipid Res. 3(3), 281 [1962].