Author/Authors :
Sperry، نويسنده , , Jonathan and McErlean، نويسنده , , Christopher S.P. and Slawin، نويسنده , , Alexandra M.Z. and Moody، نويسنده , , Christopher J.، نويسنده ,
Abstract :
Oxidation of the indolo[2,3-a]carbazole 15, readily obtained in six steps from indigo, followed by deprotection results in formation of the indolo[3,2-j]phenanthridine quinone alkaloid calothrixin B 2, demonstrating the viability of the proposed biosynthetic route to this unique ring system.
