Scheme 2.
Synthesis of 7-(2-Aminopyridyl)- and 7-(2,4 Diaminopyrimidyl)indolesa
aReagents and conditions. (a) 41a or 41b, Pd(PPh3)4, Na2CO3 or Cs2CO3, dioxane/H2O, 100 °C. (b) Pd(PPh3)4, Na2CO3, dioxane/H2O, 100 °C.
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