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. Author manuscript; available in PMC: 2012 Oct 1.
Published in final edited form as: Bioorg Med Chem Lett. 2011 Aug 8;21(19):5774–5777. doi: 10.1016/j.bmcl.2011.08.009

Scheme 3.

Scheme 3

Reagents and conditions: (a) Pd(PPh3)4, Na2CO3, CH3CN/H2O (1/1), 75 °C, 4-benzylthiophenylboronic acid (54%); (b) Pd(PPh3)4, Na2CO3, CH3CN/H2O (1/1), 75 °C, 6-hydroxypyridine-3-boronic acid pinacol ester (70%); (c) P2S5, pyridine, 120 °C (71%); (d) 2-methylbenzyl bromide, K2CO3, DMF (76%).