Table 3 1H and 13C NMR data for compound 2 (400 MHz in methanol I-d4 δ ppm)
From: NAD+-dependent HDAC inhibitor stimulates Monascus pigment production but inhibit citrinin
No. | Position | δC | δH (mult, J in Hz) |
|---|---|---|---|
1 | C-1 | 149.76 | 7.49 (s, 1H) |
2 | C-3 | 161.40 | |
3 | C-4 | 110.07 | 6.30 (s, 1H) |
4 | C-4a | 147.93 | |
5 | C-5 | 106.07 | 5.36 (s, 1H) |
6 | C-6 | 194.21 | |
7 | C-6a | 84.12 | |
8 | C-6b | 116.33 | |
9 | C-8 | 171.06 | |
10 | C-9 | 57.11 | 3.92 (s, 1H) |
11 | C-9a | 43.64 | 3.28 (s, 1H) |
12 | C-10 | 23.46 | 1.50 (s, 3H) |
13 | C-11 | 40.55 | 2.68 (d, J = 6.4, 2H) |
14 | C-12 | 69.39 | 5.36 (dd, J = 6.3, 12.7, 1H) |
15 | C-13 | 20.05 | 1.27 (s, 3H) |
16 | C-14 | 203.86 | |
17 | C-15 | 43.98 | 2.94 (dt, J = 7.3, 7.3, 18.3, 2H) |
18 | C-16 | 23.47 | 1.56 (m, 2H) |
19 | C-17 | 32.28 | 1.26 (m, 2H) |
20 | C-18 | 23.71 | 1.25 (m, 2H) |
21 | C-19 | 14.26 | 0.86 (t, J = 7.1, 3H) |
22 | C20 | 172.04 | |
23 | C-21 | 14.26 | 1.95 (s, 3H) |