4KC4:
reference: Design of glycosyltransferase inhibitors: pyridine as a pyrophosphate surrogate., Wang S, Cuesta-Seijo JA, Lafont D, Palcic MM, Vidal S, Chemistry. 2013 Nov 4;19(45):15346-57. doi: 10.1002/chem.201301871. Epub 2013 Sep, 23. PMID: 24108680

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