Transition metals in organic synthesis, part 82.: First total synthesis of methyl 6-methoxycarbazole-3-carboxylate, glycomaurrol, the anti-TB active micromeline, and the furo[2,3-c]carbazole alkaloid eustifoline-D

The palladium(0)-catalyzed amination followed by palladium(II)-catalyzed oxidative cyclization of the resulting diarylamine provides a short route to a series of 6-oxygenated carbazole alkaloids: glycozoline, 3-formyl-6-methoxycarbazole, methyl 6-methoxycarbazole-3-carboxylate, glycozolinine (glycozolinol), glycomaurrol, micromeline, and eustifoline-D.