Details

Autor(en) / Beteiligte

• Jagadeesh, S. G
• Krupadanam, G. L. David
• Srimannarayana, G
• Murthy, S. Samba
• Kaur, Amarjit
• Raja, S. S

Titel

Tobacco Caterpillar Antifeedent from the Gotti Stem Wood Triterpene Betulinic Acid

Ist Teil von

• Journal of agricultural and food chemistry, 1998-07, Vol.46 (7), p.2797-2799

Ort / Verlag

Washington, DC: American Chemical Society

Erscheinungsjahr

1998

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Betulinic acid (I), a pentacyclic triterpene, on derivatization gives six compounds:  3β-hydroxylup-20(29)-en-28 oic acid methyl ester (II), 3β-acetoxylup-20(29)-en-28-oic acid (III), 3β-allyloxylup-20(29)-en-28-oic acid (IV), 3β-p-methylcinnamatoxylup-20(29)-en-28-oic acid (V), 3β-p-methoxycinnamatoxylup-20(29)-en-28-oic acid (VI), and 3β-tri-O-methylgallotoxylup-20(29)-en-28-oic acid (VII). Their antifeedent activity against the agricultural pest tobacco caterpillar larvae (Spodoptera litura F) in a no-choice laboratory study showed the active compounds are V, VI, and VII. Keywords: Antifeedent; betulinic acid derivatives; tobacco caterpillar; Spodoptera litura (F)