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. Author manuscript; available in PMC: 2008 Aug 11.
Published in final edited form as: J Med Chem. 2006 Jun 1;49(11):3368–3376. doi: 10.1021/jm060142p

Scheme 3a.

Scheme 3a

aReagents: a) N-methyl-4-chlorobutylamine hydrochloride, i-Pr2NEt, CH2Cl2, 0 °C - rt, 4h; b) 6a-c, i-Pr2NEt, CH2Cl2; c) LiHMDS, nitrofurfuryl alcohol, THF, -30 °C, 5h; d) Pd(PPh3)4, TolSO2Na, THF/H2O.