H. Takayama et al., A NEW CLASS OF 2 DIMERIC INDOLE ALKALOIDS, CORYZEYLAMINE AND DEFORMYLCORYZEYLAMINE, FROM THE LEAVES OF HUNTERIA-ZEYLANICA IN THAILAND, Chemical and Pharmaceutical Bulletin, 42(9), 1994, pp. 1957-1959
Two novel dimeric indole alkaloids, coryzeylamine (2) and deformylcory
zeylamine (3), which are composed of sarpagine-type and echitamine-typ
e monoterpenoid indole alkaloids, were isolated from the leaves of Hun
teria zeylanica native to Thailand.