Abstract
Four new alkaloids, representing the first members of new groups of polyindolinic
alkaloids, have been isolated from the aerial parts of Calycodendron milnei along with other alkaloids. The names vatine, its stereoisomer vatine A, vatamine,
and vatamidine are proposed. They are polymers of six, seven, and eight N
b-methyltryptamine units, respectively.
Key words
Calycodendron milnei
- Rubiaceae - alkaloid - polyindolenines - vatine - vatamine - vatamidine -
N
b-methyltryptamines - structure elucidation
