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. Author manuscript; available in PMC: 2023 Mar 1.
Published in final edited form as: ACS Chem Neurosci. 2018 May 2;9(7):1840–1848. doi: 10.1021/acschemneuro.8b00139

Scheme 1a.

Scheme 1a

a(i) 3-Bromopropionyl chloride, K2CO3. (ii) NaOtBu. (iii) TfOH. (iv) NBS. (v) see Scheme 2. (vi) benzyl (5a–k) or phenethyl (5l) boronic acid, Pd(dppf)Cl2, K2CO3. (vii, viii) see Schemes 3 and 4.