several synthetic and natural lecithins were converted to their corresponding dimethylphosphatidates by hydrolysis with phospholipase d ( phosphatidylcholine phospholipase d ( phosphatidylcholine phosphatidohydrolase , ec 3.1.4.4 ) and methylation of the resulting phosphatidic acids with diazomethane .
C0031617
lecithins
C1959616
phosphatidylcholine