34 : 201-205 ) , followed by conversion to the phosphatidic acid and condensation with choline tosylate in the presence of trichloroacetonitrile afforded the diastereomers of 1-methyl-1,2-di- ( o-hexadecyl ) -rac-glycero-3-phosphocholine .
C0008405
choline
C0031716
phosphocholine