Three new indole alkaloids, viz. 10-methoxyaffinisine, 10-methoxycathafolin
e and alstonerinal, in addition to alstonerine, alstonisine, alstonal, alst
ophylline, vincamajine, lochnerine and cathafoline were isolated from the s
tem-bark extract of Alstonia macrophylla. (C) 1999 Elsevier Science Ltd. Al
l rights reserved.