title: Defensive secretion of the millipede Floridobolus penneri.
abstract: Six quinones were identified from the defensive secretion of the millipede Floridobolus penneri. The two major components, 2-methyl-1,4-benzoquinone [1] and 2-methoxy-3-methyl-1,4-benzoquinone [3], previously characterized, comprise 95% of the secretion. One of the minor compounds, 2,5-dimethyl-3-methoxy-1,4-benzoquinone [4], is a new natural product. Another, 2-hydroxy-3-methyl-1,4-benzoquinone [2], had been tentatively characterized from a microbial source. The other two components are 2,3-dimethoxy-1,4-benzoquinone [5] and 2,3-dimethoxy-5-methyl-1,4-benzoquinone [6]. No sex difference in the composition of the secretion was noted.
authors.affiliation: Baker Laboratory, Department of Chemistry, Cornell University, Ithaca, New York 14853.
authors.forename: A B
authors.initials: AB
authors.lastname: Attygalle
authors.forename: S C
authors.initials: SC
authors.lastname: Xu
authors.forename: J
authors.initials: J
authors.lastname: Meinwald
authors.forename: T
authors.initials: T
authors.lastname: Eisner
mesh_terms: D000818:Animals; D001097:Arachnida / Q000737:chemistry / Q000502:physiology*; D016227:Benzoquinones / Q000737:chemistry / Q000378:metabolism*; D002849:Chromatography, Gas; D005088:Exocrine Glands / Q000737:chemistry / Q000378:metabolism*; D005260:Female; D009682:Magnetic Resonance Spectroscopy; D008297:Male; D013058:Mass Spectrometry; D013055:Spectrophotometry, Infrared
chemical_list: D016227:Benzoquinones