Abstract
The chemical structure of 2 uridine nucleotide derivatives isolated human milk or colostrum were identified as uridine 5[image]-(4-O-beta-D-galacto-pyranosyl-[image]-acetylglucosamine-1-dihydrogen pyrophosphate) and uridine 5[image]-(2- or 4-[image]-L-fucopyranoosyl-4-[image]-beta-D-galactopyranosyl-[image]acetyl-glucosamine-l-dihydrogen pyrophosphate).