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. Author manuscript; available in PMC: 2011 Jul 12.
Published in final edited form as: J Comb Chem. 2010 Jul 12;12(4):566–570. doi: 10.1021/cc100054u

Scheme 1.

Scheme 1

Reagents and conditions: (a) 55% TFA/DCM, 1h; (b) 20% piperidine/DMF, 10 min, twice; (c) Benzyl isocyanide/Cyclohexanone (1:1) in Acetonitrile/MeOH (4:1); (d) HF/anisole, 1.5 h, 0 °C.