Add time:08/29/2019         Source:sciencedirect.com

4-Nitrophenyl [sodium β-d-glucopyranosyluronate]-(1→3)-2-acetamido-2-deoxy-β-d-glucopyranoside (1) and 4-nitrophenyl [sodium β-d-glucopyranosyluronate]-(1→3)-2-acetamido-2-deoxy-β-d-galactopyranoside (2) were prepared from the zwitterions hyalobiuronic acid [β-d-glucopyranuronic acid-(1→3)-2-amino-2-deoxy-d-glucopyranose] and chondrosine [β-d-glucopyranuronic acid-(1→3)-2-amino-2-deoxy-d-galactopyranose], respectively. Compounds 1 and 2 were not hydrolysed by bovine testicular hyaluronidase.

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