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. Author manuscript; available in PMC: 2009 Aug 1.
Published in final edited form as: Bioorg Med Chem. 2008 Jun 20;16(15):7291–7301. doi: 10.1016/j.bmc.2008.06.030

Scheme 1a.

Scheme 1a

a Reagents: (i) 4-Chloroaniline, DME, KI; (ii) Benzylamine, o-Xylene; (iii) (a) NaOH, EtOH; (b) Ac2O, NaOAc; (iv) LiAlH4; (v) ClCO2Et, Toluene; (vi) KOH, EtOH, NH2NH2; (vii) 4-Chloro-4′-fluorobutyrophenone, KI, K2CO3, DME.