A new carbazole alkaloid, designated as glycoborinine, was isolated from th
e roots of Glycosmis arborea, along with two other known carbazole alkaloid
s, viz. glycozoline and glycozolidine, and two known quinoline alkaloids, v
iz. skimianine and 3-(3',3'-dimethylallyl)-4,8-dimethoxy-N-methylquinolin-2
-one Its structure was elucidated mainly on the basis of its 2D NMR spectra
l analyses. (C) 1999 Elsevier Science Ltd. All rights reserved.