Insect antifeedants from Munronia henryi: structure of munroniamide.
A novel A,B-seco-tetranortriterpenoid lactam, named munroniamide (1), along with three known ceramides (2-4), was isolated from the methanolic extract of the whole bodies of Munronia henryi. The structure of 1 was established using spectroscopic methods. Compound 2 exhibited significant antifeeding activity, and 1 exhibited moderate activity, whereas 3 and 4 showed negative activity against Pieris brassicae L.
Qi
Shu-Hua
SH
State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, The Chinese Academy of Sciences, Kunming 650204, Yunnan, People's Republic of China.
Wu
Da-Gang
DG
Chen
Li
L
Ma
Yun-Bao
YB
Luo
Xiao-Dong
XD
D000818:Animals; D002518:Ceramides / Q000737:chemistry / Q000302:isolation & purification; D004435:Eating / Q000187:drug effects; D007313:Insecta / Q000502:physiology; D007306:Insecticides / Q000737:chemistry* / Q000302:isolation & purification / Q000494:pharmacology; D036701:Limonins / Q000737:chemistry* / Q000302:isolation & purification / Q000494:pharmacology; D009682:Magnetic Resonance Spectroscopy; D029582:Meliaceae / Q000737:chemistry*; D015394:Molecular Structure; D010936:Plant Extracts / Q000737:chemistry; D014315:Triterpenes / Q000737:chemistry* / Q000302:isolation & purification / Q000494:pharmacology
D002518:Ceramides; D007306:Insecticides; D036701:Limonins; D010936:Plant Extracts; D014315:Triterpenes; C480339:munroniamide