F. Abe et al., INDOLE ALKALOIDS FROM THE LEAVES OF ALSTONIA-VILLOSA IN SUNBAWA (ALSTONIA-6), Chemical and Pharmaceutical Bulletin, 46(8), 1998, pp. 1235-1238
Seventeen alkaloids were isolated from the air-dried leaves of Alstoni
a villosa and their structures characterized. One of the seven new alk
aloids was elucidated to be (19Z)-5 alpha-methoxyrhazimine, having a 3
,4-dihydroquinoline nucleus.