7a-O-methyldeguelol, a modified rotenoid with an open ring-C, from the roots of Derris trifoliata.
From the acetone extract of the roots of Derris trifoliata an isoflavonoid derivative, named 7a-O-methyldeguelol, a modified rotenoid with an open ring-C, representing a new sub-class of isoflavonoids (the sub-class is here named as rotenoloid), was isolated and characterised. In addition, the known rotenoids, rotenone, deguelin and alpha-toxicarol, were identified. The structures were determined on the basis of spectroscopic evidence. Rotenone and deguelin were identified as the larvicidal principles of the acetone extract of the roots of Derris trifoliata.
Yenesew
Abiy
A
Department of Chemistry, University of Nairobi, P.O. Box 30197, Nairobi, Kenya. ayenesew@uonbi.ac.ke
Mushibe
Eluid K
EK
Induli
Martha
M
Derese
Solomon
S
Midiwo
J O
JO
Kabaru
Jacques M
JM
Heydenreich
Matthias
M
Koch
Andreas
A
Peter
Martin G
MG
D000818:Animals; D003465:Culex; D029866:Derris / Q000737:chemistry*; D007306:Insecticides / Q000302:isolation & purification* / Q000494:pharmacology; D007814:Larva; D008958:Models, Molecular; D015394:Molecular Structure; D018517:Plant Roots / Q000737:chemistry*; D012402:Rotenone / Q000031:analogs & derivatives* / Q000302:isolation & purification* / Q000494:pharmacology
C501191:7a-O-methyldeguelol; D007306:Insecticides; C501190:alpha-toxicarol; D012402:Rotenone; C107676:deguelin