by comparison of carbon-13 nmr data from gaucher cerebroside and from other natural sphingolipids with those from synthetic l-threo-ceramide , d-glucosyl-l-threo-ceramide , d-erythro-ceramide and d-glucosyl-d-erythro-ceramide , we have been able to obtain directly , for the first time , unequivocal evidence for the erythro configuration of the sphingosine moiety in natural sphingolipids .
C0007805
cerebroside
C0007745
ceramide