Table 1.
1H shift (δ) | Multiplicityab | Assignment | 13C sliift (d)c |
---|---|---|---|
1.24 | t | CH3 | 17.1 (CH3) |
3.41 | dd | H4 | 72.5 (C-4) |
3.55 | dd | H2 | 66.9 (C-2) |
3.57 | q | H(CH2) | 66.8 (CH2) |
3.69 | m | H5 | 74.7 (C-5) |
3.71 | dd | H3 | 76.1 (C-3) |
3.77 | dd | H6’ | |
3.80 | q | H’(CH2) | |
3.86 | dd | H6 | 63.6 (C-6) |
4.93 | d | H1 | 100.7 (C-l) |
d = doublet; t = triplet; q = quartet; m = multiplet; dd = doublet of doublets.
Some of these assignments were based on 1H–1H COSY and TOCSY NMR.
Assignments were based on 1H–13C HMBC spectrum.