Single-stage process for preparing mixed-substituted enantiomerically pure 1,2-diacyl-sn-glycero-3-phosphocholines of general formula I ##STR1## in which R.sub.1 and R.sub.2 are different and independently of each other denote a substituted or unsubstituted C.sub.1 to C.sub.24 -alkyl or C.sub.3 to C.sub.24 -alkenyl radical, by reacting 1-0-triphenylmethyl-2-acyl-sn-glycero-3-phosphocholine of the general formula ##STR2## in which T denotes a substituted or unsubstituted triphenylmethyl group and R.sub.2 is as defined above, with a reactive carboxylic acid derivative of the general formula R.sub.1 --CO--X III in which R.sub.1 is as defined above and X denotes a carboxylic acid radical, a carbonic acid radical, a sulfonic acid radical or the radical of a fused or unfused five-membered heterocycle having at least two N atoms in the ring, in the presence of a protonic acid, of a Lewis acid or of adducts thereof with electron donors, and isolating the resulting compounds of the general formula I from the reaction mixture.
用于制备混合取代对映纯1,2-二酰基-sn-
甘油-3-
磷酰
胆碱的单级过程,其通式为I
其中R.sub.1和R.sub.2分别表示不同的、独立的取代或未取代的C.sub.1到C.sub.24-烷基或C.sub.3到C.sub.24-烯基基团,通过将通式为##STR2##的1-0-三苯甲基-2-酰基-sn-
甘油-3-
磷酰
胆碱与通式为R.sub.1--CO--X III的反应性
羧酸衍
生物反应,在此中R.sub.1如上定义,X表示
羧酸基团、
碳酸基团、
磺酸基团或至少有两个N原子的融合或未融合的五元杂环的基团,在质子酸、Lewis酸或它们与电子给体的加合物的存在下,从反应混合物中分离出通式I的结果化合物。