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. 2013 Feb 1;64(6):1497–1507. doi: 10.1093/jxb/ert010

Table 1.

Chemical shift assignments for the three forms of sedoheptulose that appear in D2O and 3JHH couplings within each ring.

α-Furanose β-Furanose α-Pyranose
C1   62.7   62.4   64.0
C2 104.6 101.6   97.4
C3   81.7   75.6   68.2
C4   76.4   75.4   70.1
C5   81.6   80.1   63.4
C6   71.6   72.6   68.7
C7   62.2   62.2   61.2
H11/H12     3.51     3.41     3.54
H3     3.94     3.94     3.80
H4     4.03     4.15     3.92
H5     3.85     3.61     3.69
H6     3.73     3.69     3.88
H71/H72     3.59 / 3.47     3.61 / 3.46     3.74 / 3.62
3J34     4.6     7.4     3.6
3J45     5.8     7.4     4.4
3J56 ND ND    11.0