A new furoquinoline alkaloid, nkolbisine, isolated from the chloroform extracts of the trunk bark of Teclea verdoorniana Exell & Mendonça, has been characterized as 6-(2,3-dihydroxy-3-methylbutyloxy)-7-methoxydictamnine (1) from spectral and chemical data. The limonoid, 7-deacetylazadirone (8), was also identified from the extracts and its structure confirmed by conversion to the known azadirone (9). © 1982, American Chemical Society. All rights reserved.