The economical synthesis of [2′-<sup>13</sup>C, 1,3-<sup>15</sup>N<sub>2</sub>]uridine; preliminary conformational studies by solid state NMR
作者:Simon G. Patching、David A. Middleton、Peter J. F. Henderson、Richard B. Herbert
DOI:10.1039/b301275a
日期:——
D-[2-(13)C]Ribose 5 was obtained from D-[1-(13)C]arabinose 4 using a Ni(II) diamine complex (nickel chloride plus TEMED). Combination of these procedures in a general cycling manner can lead to the very efficient preparation of specifically labelled 13C-monosaccharides of particular chirality. 15N-labelling was introduced in the preparation of [2'-(13)C, 1,3-(15)N2]uridine 11 via [15N2]urea. Cross polarisation magic