Chromatography of the ethanolic extracts from the twigs of Fissistigma
balansae led to the isolation of a new protoberberine alkaloid, fissi
saine, along with four known protoberberine alkaloids thaipetaline, ki
kemanine, columbamine and dehydrodiscretamine. The structures of these
isolates were established by means of mass and related spectral exper
iments. (C) 1998 Elsevier Science Ltd. All rights reserved.