title: Polyzonimine: A novel terpenoid insect repellent produced by a milliped.
abstract: A nitrogen-containing terpene 6,6-dimethyl-2-azaspiro[4.4]non-1-ene (polyzonimine) was isolated from the defensive secretion of the milliped Polyzonium rosalbum. Polyzonimine, which is repellent to such natural enemies of the milliped as ants, acts as a topical irritant to insects (10-4 M induces scratching in cockroaches). Its structure was confirmed by a five-step synthesis starting from 2,2-dimethyl-7-oxabicyclo[4.1.0]heptane.
mesh_terms: D000818:Animals; D001000:Ants; D001181:Arthropods / Q000378:metabolism* / Q000648:ultrastructure; D003058:Cockroaches; D007302:Insect Repellents; D008855:Microscopy, Electron, Scanning; D013729:Terpenes / Q000302:isolation & purification / Q000494:pharmacology*
chemical_list: D007302:Insect Repellents; D013729:Terpenes