Synthesis of trimethyl (2S,3R)- and (2R,3R)-[2-2H1]-homocitrates and the corresponding dimethyl ester lactones—towards elucidating the stereochemistry of the reaction catalysed by homocitrate synthase and by the Nif-V protein
作者:Ali Tavassoli、James E.S. Duffy、Douglas W. Young
DOI:10.1016/j.tetlet.2005.01.134
日期:2005.3
respectively, and dimethyl (2S,3R)- and (2R,3R)-[2-2H1]-homocitric lactones, 11b and 11c respectively, have been synthesised from shikimic acid and [2-2H]-shikimic acid by a route which defines the stereochemistry of the two chiral centres in each compound. The NMR spectra of these products will enable the stereochemistry of the biological reaction catalysed by homocitrate synthase and by the protein from the
Synthesis of trimethyl (2S,3R)- and (2R,3R)-[2-2H1]-homocitrates and dimethyl (2S,3R)- and (2R,3R)-[2-2H1]-homocitrate lactones—an assay for the stereochemical outcome of the reaction catalysed both by homocitrate synthase and by the Nif-V protein
作者:Ali Tavassoli、James E. S. Duffy、Douglas W. Young
DOI:10.1039/b515937g
日期:——
(3R)-homocitrate lactone18, (2S,3R)-[2-2H1]-homocitric lactone 18a and (2R,3R)-[2-2H1]-homocitric lactone 18b have been synthesised. D-quinic acid 12 was used as the source of the (3R)-centre in the unlabelled target compounds 17 and 18. (2)-Shikimic acid 19 and the (2)-[2-2H]-shikimic acid derivative 32 respectively were used in the synthesis of the labelled compounds. In the latter syntheses, Sharpless