Hydrochloric Acid → 89319-60-8

Participants

Reaction Steps

After 1,2-dioleoyl-sn-glycero-3-phospho-L-serine sodium salt (SIGMA, P1060) (85 mg) was dissolved in distilled water (25 ml), 200 mM Tris-HCl buffer (pH 8.0) (1.5 ml) and 100 mM potassium chloride (1.5 ml) were added to the solution, and phospholipase A2 (0.3 ml) (10 mg/ml, 5 mM sodium acetate buffer (pH 5.0)) was further added thereto. The mixture was reacted at room temperature for 20 hours, and the pH was rendered 2 to 3 with 5M hydrochloric acid to terminate the reaction. After the reaction solution was concentrated to dryness, the residue was dissolved in a chloroform-methanol solvent mixture and the solution was adsorbed on silica gel column chromatography. Elution was performed with a chloroform-methanol solvent mixture to give 1-oleoyl-sn-glycero-3-phospho-L-serine. Subsequently, 1-oleoyl-sn-glycero-3-phospho-L-serine was catalytically hydrogenated with gaseous tritium (3H2) in the presence of palladium, in accordance with publicly known methods (e.g., the methods described in R. F. Glascock, Isotopic Gas Analysis for Biochemists, 227, Academic Press, New York, 1954) to introduce tritium into the double bond. Thus, the objective product, 1-[9,10-3H2]-stearoyl-sn-glycero-3-phospho-L-serine was obtained.

Provenance & Evidence