Post 387179 (https://www.thevespiary.org/talk/index.php?topic=13315.msg38717900#msg38717900)
(Chimimanie: "Tryptamine from indole and ethylene imine", Tryptamine Chemistry)Angew Chem, Int Ed (Engl), 6(2), 178 (1967) (https://www.thevespiary.org/rhodium/Rhodium/djvu/pfeil.djvu)
(https://www.thevespiary.org/rhodium/Rhodium/djvu/pfeil.djvu)