Two new 7,7'-bisdehydroaporphine alkaloids, 7,7'-bisdehydro-O-methylis
opiline and dehydronornuciferine-7'-dehydro-O-methylisopiline, and the
known bisdehydroaporphine alkaloid, urabaine, have been isolated from
the stem bark of Polyalthia bullata. Copyright (C) 1996 Elsevier Scie
nce Ltd