Regioselective intramolecular reactions of 2-indolylacyl radicals with pyridines: A direct synthetic entry to ellipticine quinones

~%

~%

~%

~11%

~3%

~54%

~%

~%

~%

~%

~%

~%

~%

~%

~%

~%

~%

~%

~%

~82%

~%

~%

~%

~%

~%

~%

~%

~%

~%

~%

~%

~%

~%