Collect. Czech. Chem. Commun. 1987, 52, 707-713
https://doi.org/10.1135/cccc19870707

Methyl 3α,6α-diacetoxy-10-oxo-(7α)-kemp-11-en-20-oate: The revised structure for the kempane derivative from the frontal gland secretion of Nasutitermes costalis soldiers

Silvio Cerrinia, Doriano Lambaa, Irena Valterováb, Miloš Buděšínskýb, Jan Vrkočb and František Turečekc

a C.N.R. Instituto di Strutturistica Chimica, C.P. 10-00016, Monterotondo Stazione, Roma, Italy
b Institute of Organic Chemistry and Biochemistry, Czechoslovak Academy of Sciences, 166 10 Prague 6, Czechoslovakia
c The J. Heyrovský Institute of Physical Chemistry and Electrochemistry, Czechoslovak Academy of Sciences, 121 38 Prague 2, Czechoslovakia

Abstract

The structure of methyl 3α,6α-diacetoxy-10-oxo-(7α)-kemp-11-en-20-oate (II) was established by X-ray analysis for a defense compound of termites Nasutitermes costalis. The previously suggested structure I with 7β-kempane skeleton is revised.