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J Chem Ecol

Title:		"Aggregation arrestant pheromone of the German cockroach,Blattella germanica (L.) (Dictyoptera: Blattellidae): Isolation and structure elucidation of blattellastanoside-A and -B"
Author(s):		Sakuma M; Fukami H;
Address:		"Pesticide Research Institute Faculty of Agriculture, Kyoto University, Kitashirakawa, Sakyoku, 606, Kyoto, Japan"
Journal Title:		J Chem Ecol
Year:		1993
Volume:		19
Issue:		11
Page Number:		2521 - 2541
DOI:		10.1007/BF00980688
ISSN/ISBN:		0098-0331 (Print) 0098-0331 (Linking)
Abstract:		"The aggregation pheromone of the German cockroach,Blattella germanica, consists of attractant and arrestant, which can be detected by olfactometer and choice-chamber assay, respectively. Both were extracted from the frass-contaminated filter paper being used as a shelter. They were separated by solvent partition withn-butanol and water. The arrestant from then-butanol phase was purified by open column chromatography and then successive HPLC isolated two major arrestant components. Spectral evidence from SI-MS, HR-EI-MS, and NMR experiments with pulse techniques provided possible structures as 1-(6alpha-chloro-4beta,5beta-epoxy-5beta-stigmast-3beta-yl)-beta-D-glucopyranoside and 1-(6alpha-chloro-5beta-hydroxy-5beta-stigmast-3beta-yl)-beta-D-glu-copyranoside, denoted as blattellastanoside-A and blattellastanoside-B, respectively. They represented arrestant activity as median effective doses (ED50) at 0.044 (A) and 3.2 (B) nmol on 1.0 cm(2) of Whatman No. 1 filter paper"
Keywords:
Notes:		"PubMed-not-MEDLINESakuma, M Fukami, H eng 1993/11/01 J Chem Ecol. 1993 Nov; 19(11):2521-41. doi: 10.1007/BF00980688"