Table 1

Identifiable 1H chemical shifts of the parent SVA and its metabolites P1 and P3 in CD3 OD at 3°C

PeakSVAP1, [M − H] = 417P3, [M − H] = 391
22.39, 2.295.88
34.086.74
4∼1.602.332.41
53.693.573.89
61-a ∼1.57, 1.27∼1.55∼1.60
71-a 1.401.25, 1.421.25, 1.41
1′1.721.721.72
2′Me0.900.920.92
2′H2.422.432.42
3′5.795.815.81
4′5.975.995.98
5′5.495.525.52
6′Me2.422.442.46
6′H1.081.111.11
7′1.981.992.00
8′5.315.345.35
8′a2.332.342.35
2"1.121.14, 1.131.12
3"1.581.581.61
4"0.850.860.87
  • 1-a  Tentative assignments of protons 6 and 7 of P1 and P3.