4HJU:
reference: Stilbene vinyl sulfonamides as fluorogenic sensors of and traceless covalent kinetic stabilizers of transthyretin that prevent amyloidogenesis., Suh EH, Liu Y, Connelly S, Genereux JC, Wilson IA, Kelly JW, J Am Chem Soc. 2013 Nov 27;135(47):17869-80. doi: 10.1021/ja408230k. Epub 2013, Nov 18. PMID: 24180271

This OCA Structure page
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