It appears that our dear friend Jace Callaway and his collaborators have recently found something of great interest in this respect:
* Vepsäläinen, Jouko J.; Auriola, Seppo; Tukiainen, Mikko; Ropponen, Nina & Callaway, J.C. (2005). "Isolation and characterization of yuremamine, a new phytoindole". Planta Medica, 71: 1053-1057.
Abstract:
Yuremamine was isolated and characterized from the stem bark of Mimosa tenuiflora. This plant is still used by indigenous peoples in North-eastern Brazil to make yurema, a psychoactive beverage that is used for medico-religious purpose (jurema preta or vinho da jurema, in Portuguese). The characterization of this novel compound by NMR and mass spectrometry introduces a new class of phytoindoles.
