title: Occurrence of the insecticidal 16,17-didehydro-16(E)-stemofoline in Stemona collinsae.
abstract: The occurrence of two alkaloids, 16,17-didehydro-16(E)-stemofoline and its isomer at C-4, 16,17-didehydro-4(E)-16(E)-stemofoline, were found together with a known insecticidal compound, stemofoline, in Stemona collinsae. The 16,17-didehydro-16(E)-stemofoline displayed higher insecticidal and antifeedant activities against the diamondback moth larvae than stemofoline.
authors: Central Laboratory and Greenhouse Complex, Kasetsart University, Nakhon-Pathom, Thailand. rdiswj@nontri.ku.ac.th
authors: S
authors: S
authors: Jiwajinda
authors: N
authors: N
authors: Hirai
authors: K
authors: K
authors: Watanabe
authors: V
authors: V
authors: Santisopasri
authors: N
authors: N
authors: Chuengsamarnyart
authors: K
authors: K
authors: Koshimizu
authors: H
authors: H
authors: Ohigashi
mesh_terms: D000818:Animals; D006576:Heterocyclic Compounds, 4 or More Rings / Q000032:analysis* / Q000378:metabolism* / Q000633:toxicity; D007306:Insecticides / Q000032:analysis* / Q000633:toxicity; D007814:Larva; D019668:Liliaceae / Q000737:chemistry*; D015394:Molecular Structure; D009036:Moths; D010936:Plant Extracts / Q000737:chemistry*; D018517:Plant Roots / Q000737:chemistry; D013785:Thailand
chemical_list: C430219:16,17-didehydrostemofoline; D006576:Heterocyclic Compounds, 4 or More Rings; D007306:Insecticides; D010936:Plant Extracts; C430220:stemofoline