Table 4 13C (200 MHz) and 1H-NMR (800 MHz) data for compound 12 (CDCl3)
From: Screening for cytotoxic chemical constituents from Justicia procumbens by HPLC–DAD–ESI–MS and NMR
Position | δC | δH (J in Hz) | Position | δC | δH (J in Hz) |
|---|---|---|---|---|---|
1 | 136.11 | 1′ | 132.40 | ||
2 | 105.70 | 6.29 or 6.30 (d, 1.7) | 2′ | 111.90 | 6.63 (m) |
3 | 153.10 | 3′ | 147.33 | ||
4 | 153.10 | 4′ | 148.84 | ||
5 | 153.10 | 5′ | 111.04 | 6.76 (m) | |
6 | 105.70 | 6.29 or 6.30 (d, 1.7) | 6′ | 120.91 | 6.66 (m) |
7a 7b | 35.83 | 2.61 (m) | 7′a | 34.99 | 2.65 (m) |
2.75 (m) | 7′b | 2.70 (m) | |||
8 | 42.97 | 1.95 (m) | 8′ | 39.59 | 2.21 (m) |
9 | 62.59 | 3.67 (2H, dtt) | 9′a | 64.69 | 4.06 (ddd) |
9′b | 4.24 (ddd) | ||||
3-OCH3 | 60.89 | 3.80 (3H, s) | 10′ | 171.05 | |
4-OCH3 | 60.89 | 3.80 (3H, s) | 11′ | 21.11 | 2.07 (3H, s) |
5-OCH3 | 60.89 | 3.80 (3H, s) | 3′-OCH3 | 55.83 | 3.86 (3H, s) |
4′-OCH3 | 56.03 | 3.83 (3H, s) |