Table 4 1H NMR data (500 MHz) of compounds 1–4
From: Herbicidal secondary metabolites from Bacillus velezensis JTB8-2 against Orobanche aegyptiaca
Proton | 1 a | 2 b | 3 a | 4 a |
|---|---|---|---|---|
δH, mult. (J in Hz) | δH, mult. (J in Hz) | δH, mult. (J in Hz) | δH, mult. (J in Hz) | |
3 | 3.53, m | 3.55, m | 3.60, dd (3.8, 12.1) | 3.61, dd (4.5, 12.5) |
3.38, m | 3.34, m | 3.27, dd (5.9, 12.1) | 3.38, dd (2.5, 12.5) | |
4 | 1.84, m | 1.80, m | 3.10, m | 4.13, m |
5 | 2.13, m | 2.09, m | 2.23, m | 2.19, m |
1.67, m | 1.22, m | 1.99, m | 2.07, m | |
6 | 4.38, t (5.7) | 4.36, t (5.5) | 4.30, m | 4.48, t (4.4) |
9 | 4.12, m | 4.05, ddd (2.0, 6.3, 10.9) | 4.15, m | 4.44, dd (6.7, 10.8) |
10 | 3.33, dd (4.3, 14.1) | 3.08, dd (5.2, 14.1) | 3.13, dd (5.9, 1.2) | 1.97, m |
3.02, dd (6.9, 14.1) | 3.02, dd (4.5, 14.1) | 3.02, dd (4.7, 13.2) | ||
11 | 1.49, m | |||
12 | 0.95, t (4.2) | |||
13 | 0.95, t (4.2) | |||
2' | 7.35, d (8.0) | 7.04, d (8.5) | 7.28, m | |
3' | 7.30, dd (7.5, 8.0) | 6.70, d (8.5) | 7.21, m | |
4' | 7.23, d (7.5) | 7.28, m | ||
5' | 7.30, dd (7.5, 8.0) | 6.70, d (8.5) | 7.21, m | |
6' | 7.35, d (8.0) | 7.04, d (8.5) | 7.28, m |