Two prenylated isoflavonoids, erysenegalensein N, 5,7,2',4'-tetrahydroxy-6-
(2"-hydroxy-3"-methylbut-3"-enyl)-8-(gamma,gamma- dimethylallyl) isoflavone
and erysenegalensein O, 5,2',4-trihydroxy-6-(gamma,gamma-dimethylallyl)-3'
''-hydroxy-2''', 2'''-dimethyldihydropyrano[5''',6"';8,7]isoflavone, in add
ition to six known compounds were isolated from the ste bark of Erythrina s
enegalensis (Leguminosae). Their structures were elucidated by spectroscopi
c methods. (C) 1999 Elsevier Science Ltd. All rights reserved.