Use of the Graebe-Ullmann reaction in the synthesis of 8-methyl-γ-carboline and isomeric aromatic aza-γ-carbolines

~92%

~%

~%

~%

~%

~79%

~%

~%

~%

~%

~%

~%

~27%

~31%

~0%

~63%

~86%

~%