Table 4 1H and 13C NMR data for compound 3 (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 | 149.77 | 7.46 (s, 1H) |
2 | C-3 | 161.38 | |
3 | C-4 | 110.07 | 6.27 (s, 1H) |
4 | C-4a | 147.93 | |
5 | C-5 | 106.07 | 5.33 (s, 1H) |
6 | C-6 | 194.20 | |
7 | C-6a | 84.08 | |
8 | C-6b | 116.34 | |
9 | C-8 | 171.03 | |
10 | C-9 | 58.67 | 3.28 (s, 1H) |
11 | C-9a | 43.65 | 3.89 (s, 1H) |
12 | C-10 | 23.68 | 1.51 (s, 3H) |
13 | C-11 | 40.55 | 2.65 (d, J = 6.3, 2H) |
14 | C-12 | 69.39 | 5.16 (m, 1H) |
15 | C-13 | 20.05 | 1.26 (d, J = 6.4, 3H) |
16 | C-14 | 203.86 | |
17 | C-15 | 43.93 | 2.58 (dt, J1 = 7.3, J2 = 18.3, 1H) |
18 | C-16 | 23.47 | 1.51 (m, 2H) |
19 | C-17 | 30.21 | 1.26 (o, 2H) |
20 | C-18 | 30.04 | 1.26 (o, 2H) |
21 | C-19 | 32.88 | 1.26 (o, 2H) |
22 | C-20 | 24.03 | 1.26 (o, 2H) |
23 | C-21 | 14.44 | 0.9 (t, J = 7.1, 3H) |
24 | C-22 | 171.97 | |
25 | C-23 | 21.02 | 1.99 (s, 3H) |