13C NMR chemical shift assignments of ruboxistaurin, 3, and 4 in DMSO-d6
Position | δC | ||||
|---|---|---|---|---|---|
| Ruboxistaurin | 3 | 4 | |||
| 2 | 130.6 | 130.8 | 131.5 | ||
| 3 | 103.5 | 104.0 | 102.1 | ||
| 4 | 126.1 | 120.2 | 127.1 | ||
| 5 | 121.2 | 122.8 | 105.3 | ||
| 6 | 120.0 | 111.3 | 151.5 | ||
| 7 | 121.4 | 153.8 | 111.4 | ||
| 8 | 109.8 | 95.7 | 110.0 | ||
| 9 | 135.8 | 137.4 | 129.9 | ||
| 10 | 45.2 | 40.6 | 45.9 | ||
| 11 | 67.0 | 67.4 | 66.5 | ||
| 13 | 73.9 | 77.1 | 75.9 | ||
| 14 | 57.3 | 61.3 | 60.8 | ||
| 16 | 43.7 | 46.6 | 45.6 | ||
| 17 | 42.7 | 46.6 | 45.6 | ||
| 18 | 30.9 | 33.8 | 32.5 | ||
| 19 | 41.6 | N.D. | 42.3 | ||
| 21 | 130.6 | 131.9 | 130.9 | ||
| 22 | 103.5 | 103.9 | 103.0 | ||
| 23 | 126.4 | 127.1 | 126.2 | ||
| 24 | 121.3 | 122.2 | 121.3 | ||
| 25 | 120.0 | 120.7 | 119.6 | ||
| 26 | 121.4 | 122.2 | 121.3 | ||
| 27 | 109.8 | 110.8 | 109.9 | ||
| 28 | 135.3 | 136.3 | 135.2 | ||
| 29 | 131.9 | N.D. | 131.2 | ||
| 30 | 172.0 | N.D. | 172.1 | ||
| 32 | 172.0 | N.D. | 172.1 | ||
| 33 | 131.9 | N.D. | 131.2 | ||
N.D., not detected.