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1H NMR data for 1–4 (δH, mult. (J in Hz), DMSO-d6).
| 1 | 2 | 3 | 4 | |
|---|---|---|---|---|
| 1 | 6.36, s | |||
| 4 | 6.35, s | 6.46, s | 6.39, s | 6.40, s |
| 7 | 7.49, d (7.8) | 7.51, m | 7.51, m | 7.53, m |
| 8 | 7.46, t (7.9) | 7.51, m | 7.51, m | 7.53, m |
| 9 | 7.39, t (7.5) | 7.41, m | 7.43, m | 7.44, m |
| 10 | 7.70, d (7.9) | 7.70, d (7.8) | 7.82, d (7.9) | 7.80, d (7.9) |
| NH2 | 6.60, brs | 7.31, brs | 6.95, brs | 6.98, brs |
| 8.46, brs | ||||
| SOCH3 | 2.98, s | |||
| SCH3 | 2.31, s |
