| Position | Licochalconeb | Butoxychalconec | Cajachalcone |
| 2 | 6.43 (1H, s) | 3.85 (3H, s, OMe) | 6.90 (2H, d, J = 8.5, H2, H6) |
| 3 | | 6.47 (1H, d, J = 2.3) | 7.35 (2H, d, J = 8.5, H3, H5) | 6.19 (1H, dd, J = 10, 18) | | | 5.31 (1H, d, J = 10, HB) | | | 5.34 (1H, d, J = 18, HC) | | |
| 4 | | 3.86 (3H, s, OMe) | 3.80 (3H, s, OMe) |
| 5 | 7.45 (1H, s) | | |
| 6 | 3.81 (3H, s, OMe) | | |
| α | 7.53 (1H, d, ) | 7.56 (1H, d, J = 15.7) | 7.54 (1H, d, J = 15.3) |
| β | 8.03 (1H, d, ) | 8.04 (1H, d, J = 15.7) | 8.05 (1H, d, J = 15.3) |
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| , | 7.97 (2H, d, ) | 8.02 (2H, m) | |
| , | 6.97 (2H, d, ) | 6.95 (2H, m) | 8.45 (2H, d, J = 8.7) |
| | | | 6.40 (1H, dd, J = 2.5, 2.5) | | 4.04 (2H, t, J = 6.4, ) | | | 1.78 (2H, m, ) | | | 0.99 (3H, t, J = 7.4, ) | |
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