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. Author manuscript; available in PMC: 2013 Apr 1.
Published in final edited form as: Bioorg Med Chem Lett. 2012 Jan 4;22(7):2635–2639. doi: 10.1016/j.bmcl.2011.12.123

Scheme 3.

Scheme 3

Additional C(2)-analogs. a12: BnO2CCH2NH3+ TsO−, Et3N, DMF, 60 °C, 18 h, 45%; bH2, cat. 10% Pd/C, EtOH, 48 h, 83% (1.1-H, 1:1.5)