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Title: Caste-specific tyramides from Myrmicine ants

Author: Jones, T.H.; Garrafo, H.M.; Spande, T.F.; Andriamaharavo, N.R.; Gorman, J.S.T.; Snyder, A.J.; Jeter, A.W.; Torres, J.A.; Daly, John W.;

Date: 2010

Source: Journal of Natural Products. 73:313 - 316

Publication Series: Scientific Journal (JRNL)

Description: Analysis of the extracts of male ants of Monomorium minimum and Monomorium ebeninum by GC-MS and GC-FTIR revealed the presence of tyramides 2 and 4c, for which the structures were established by comparison with synthetic samples. These compounds and their analogues 1 and 3 were also found in males of other Monomorium species, males of Myrmicaria opaciventris, and males of several Solenopsis (Diplorhoptrum) species. Vapor-phase FTIR spectra revealed critically important structural clues to two of the tyramides, which had methyl branching in the tyramide acyl moiety. Tyramide 4c exhibited a strong intramolecular amide NH hydrogen bond where an alpha-keto group was deduced to be present in the acyl moiety and also showed the overlap of this ketone group frequency with that of the amide Vc-o. The biological function of these compounds is uncertain; however, their role in ant-mating behavior may be suggested by a large body of evidence.

Keywords: Myrmicine ants, chemical compounds, tropics

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Jones, T.H.; Garrafo, H.M.; Spande, T.F.; Andriamaharavo, N.R.; Gorman, J.S.T.; Snyder, A.J.; Jeter, A.W.; Torres, J.A.; Snelling R.R.; Daly, John W. 2010. Caste-specific tyramides from Myrmicine ants. Journal of Natural Products. 73:313 - 316.

 


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