Studies on the biosynthesis of thiarubrine A in hairy root cultures of Ambrosia artemisiifolia using 13C-labelled acetates
1992
Gomez-Barrios, M.L. | Parodi, F.J. | Vargas, D. | Quijano, L. | Hjortso, M.A. | Flores, H.E. | Fischer, N.H.
The 13C NMR spectra of thiarubrine A and B have been completely assigned. In a biosynthetic study using hairy root cultures of Ambrosia artemisiifolia, the 13C NMR spectra of thiarubrine A labelled by incorporation of [1-13C]-,[2-13C]- and [1,2-13C2]-acetate showed patterns of enrichment consistent with a biosynthetic pathway in which the 13-carbon 1,2-dithiin arises from a longer-chain precursor, most likely a 14-carbon homologue, by carbon-carbon scission.
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