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. Author manuscript; available in PMC: 2011 Jun 7.
Published in final edited form as: J Med Chem. 2009 Dec 10;52(23):7580–7592. doi: 10.1021/jm900426g

Scheme 2 a.

Scheme 2 a

a (i) 2-Iodo-6-chloropurine, Ph3P, DIAD, THF, room temp; (ii) 3-chlorobenzylamine, Et3N, MeOH, room temp; (iii) 10% methylamine, MeOH, room temp; (iv) HC≡C(CH2)nCOOMe, Pd(PPh3)2Cl2, Cul, Et3N, DMF, room temp; (v) KOH, MeOH; (vi) ethylenediamine, MeOH, room temp; (vii) 10% TFA, MeOH, 70 °C.