Table 2 1H and 13C NMR data for compound 1 (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 | 1 | 148.4 | 7.56 (s, 1H) |
2 | 3 | 163.0 | |
3 | 4 | 105.6 | 6.34 (s, 1H) |
4 | 4a | 149.9 | |
5 | 5 | 109.9 | 5.39 (d, J = 1.2, 1H) |
6 | 6 | 194.1 | 4.08 (m, 1H) |
7 | 6a | 84.1 | 1.31 (d, J = 8.2, 3H) |
8 | 6b | 116.3 | |
9 | 8 | 170.1 | |
10 | 9 | 66.3 | 3.97 (s, 1H) |
11 | 9a | 43.9 | 3.04 (br s, 1H) |
12 | 10 | 23.5 | 1.54 (s, 3H) |
13 | 11 | 43.7 | 2.56 (ddd, J 1 = 4.5, J2 = 8.5, J3 = 14.2, 2H) |
14 | 12 | 56.9 | 4.08 (m, 1H) |
15 | 13 | 23.7 | 1.31 (d, J = 8.2, 3H) |
16 | 14 | 203.8 | |
17 | 15 | 43.4 | 3.32 (dt, J 1 = 1.6, J2 = 3,3, 2H) |
18 | 16 | 23.5 | 1.60 (d, J = 7.7, 2H) |
19 | 17 | 30.1 | 1.24 (o, 2H) |
20 | 18 | 31.5 | 1.24 (o, 2H) |
21 | 19 | 32.3 | 1.24 (o, 2H) |
22 | 20 | 23.5 | 1.24 (o, 2H) |
23 | 21 | 14.3 | 0.91 (t, J = 7.1, 3H) |