6HZY:
reference: Synthetic and crystallographic insight into exploiting sp2-hybridization in the development of alpha-L-fucosidase inhibitors., Coyle T, Wu L, Debowski A, Davies G, Stubbs KA, Chembiochem. 2019 Jan 21. doi: 10.1002/cbic.201800710. PMID: 30663832

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