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. Author manuscript; available in PMC: 2010 Jul 1.
Published in final edited form as: Appl Radiat Isot. 2009 Apr 2;67(7-8):S374–S379. doi: 10.1016/j.apradiso.2009.03.104

Fig. 3.

Fig. 3

Syntheses and separation of 8 and 9 (as racemates). Reagents and conditions: (a) CuCl, Bu3P, DMF, rt; (b) (NH4)2CO3, KCN, EtOH/H2O (1:1), 60 °C; (c) separation of diastereoisomers 8a and 8b in methanol; (d) HCl (12 M), 150 °C