Error in Table
In the published article, there was an error in Table 2 as published. In Table 2 , the chemical shift of compound A2’s 1H NMR spectrum should be listed, but it was incorrectly listed as that of compound A1.
Table 2.
NMR spectroscopic data of A2.
| No. | δ 1H (mult., J Hz) | δ 13C | 1H-1H COSY | HMBC | NOESY |
|---|---|---|---|---|---|
| 2 | 170.1 | ||||
| 3 | 111.5 | ||||
| 3a | 3.17 (ddd, 2.1, 2.5, 7.3) | 49.0 | H-4, H-8b, H-6’ | C-2, C-3, C-4, C-4a, C-6’ | H-4, H-8b |
| 4 | 4.32 (br, s) | 83.1 | H-3a, H-8b, 4-OH | H-3a, H-5b | |
| 4a | 136.4 | ||||
| 5a | 1.94 (dddd, 0.5, 5.5, 7.9, 18.2) | 34.2 | H-5b, H-6a, H-6b, H-8b | C-4a, C-6, C-8, C-8a | H-5b, H-6a, H-6b, H-7 |
| 5b | 1.69 (dddd, 1.2, 5.3, 5.9, 18.2) | H-5a, H-6a, H-6b | C-4a, C-6, C-8, C-8a | H-4, H-5a, H-6a, H-6b, H-9 | |
| 6a | 1.21 (dddd, 5.3, 7.9, 8.5, 12.9) | 30.5 | H-5a, H-5b, H-6b, H-7 | C-5, C-7, C-8, C-8a | H-5a, H-5b, H-6b, H-7, H-9 |
| 6b | 1.44 (dddd, 4.0, 5.5, 5.9, 12.9) | H-5a, H-5b, H-6a, H-7 | C-5, C-7, C-8, C-8a, C-9 | H-5a, H-5b, H-6a, H-7, H-9 | |
| 7 | 2.17 (ddq, 4,0, 8.5, 6.8) | 22.2 | H-6a, H-6b, H-9, H-10a, H-10b | H-5a, H-6a, H-6b, H-9, H-10a | |
| 8 | 144.2 | ||||
| 8a | 146.6 | ||||
| 8b | 5.24 (dddd, 0.5, 1.2, 2.2, 7.3) | 84.2 | H-3a, H-4, H-5a | C-2, C-8a | H-3a, H-10b |
| 9 | 0.96 (d, 6.8) | 18.9 | H-7 | C-5, C-6, C-8 | H-5b, H-6a, H-6b, H-7, H-10a |
| 10a | 5.03 (br, s) | 110.9 | H-7, H-10b | C-4a, C-5, C-7, C-8 | H-7, H-9, H-10b |
| 10b | 5.38 (br, s) | H-7, H-10a | C-4a, C-5, C-7, C-8 | H-8b, H-10a | |
| 2’ | 5.02 (dq, 1.5, 1.5) | 100.7 | H-3’, H-7’ | C-4’, C-5’, C-6’ | H-3’, H-6’ |
| 3’ | 5.67 (dq, 1.5, 1.5) | 140.6 | H-2’, H-7’ | C-2’, C-5’ | H-2’, H-7’ |
| 4’ | 135.2 | ||||
| 5’ | 169.8 | ||||
| 6’ | 7.36 (d, 2.5) | 151.4 | H-3a | C-2, C-3, C-3a, C-2’ | H-2’ |
| 7’ | 1.33 (dd, 1.5, 1.5) | 10.2 | H-2’, H-3’ | C-2’, C-3’, C-4’, C-5’ | H-3’ |
| 4-OH | 1.11 (s) | H-4 |
The corrected Table 2 and its caption “NMR spectroscopic data of A2” appear below.
The authors apologize for this error and state that this does not change the scientific conclusions of the article in any way. The original article has been updated.
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