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Biol Bull 136: 91-95. (February 1969)
© 1969 Marine Biological Laboratory
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NATURAL AND SYNTHETIC MATERIALS WITH INSECT HORMONE ACTIVITY. 2. JUVENILE HORMONE ACTIVITY OF SOME DERIVATIVES OF FARNESENIC ACID

K. SLÁMA 1, M. ROMANcaronUK 2, and F. ScaronORM 3

1 Institute of Entomology, Czechoslovak Academy of Sciences, Prague
2 The Institute of Organic Chemistry, Czechoslovak Academy of Sciences, Prague
3 The Institute of Biochemistry, Czechoslovak Academy of Sciences, Prague

The juvenile hormone activity of both farnesenic acid esters and their dihydrodichloro derivatives increased from the methyl to the ethyl ester, then decreased again. In some hemipteran insects enormous increases in activity were obtained after addition of two hydrogen chloride molecules to the two double bonds of farnesenic acid esters. The same change in chemical structure considerably decreased the activity on Tenebrio pupae. On Pyrrhocoris apterus, the highest activity (at the 0.1 nanogram level) was obtained with the ethyl ester of trans-3,7,11-trimethyl-7,11-dichloro-2-dodecenic acid.




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M. Zaoral and K. Slama
Peptides with Juvenile Hormone Activity
Science, October 2, 1970; 170(3953): 92 - 93.
[Abstract] [PDF]


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Copyright © 1969 by the Marine Biological Laboratory.