| Umbilicaxanthone B (CDCl3) | ||
|---|---|---|
| Position | δC | δH (J in Hz) |
| 1 | 151.0 | - |
| 1–OH | - | 13.30 (s) (1H) |
| 2 | 117.8 | - |
| 3 | 119.4 | 6.49 (s) (1H) |
| 4 | 143.2 | - |
| 4–OCH3 | 56.3 | 3.75 (s) (3H) |
| 4a | 141.3 | - |
| 5 | 146.2 | - |
| 6 | 102.4 | 6.27 (s) (1H) |
| 7 | 157.2 | - |
| 8 | 117.6 | - |
| 8a | 129.6 | - |
| 9 | 183.1 | - |
| 9a | 114.6 | - |
| 10a | 135.7 | - |
| 1′ | 25.4 | 3.38 (d, 7.2) (2H) |
| 2′ | 123.8 | 5.39 (td, 7.2, 1.2) (1H) |
| 3′ | 130.9 | - |
| 4′ | 26.2 | 1.65 (s) (3H) |
| 5′ | 18.4 | 1.79 (s) (3H) |
| 1″ | 26.1 | 4.19 (d, 6.8) (2H) |
| 2″ | 124.8 | 5.37 (td, 6.8, 1.5) (1H) |
| 3″ | 132.0 | - |
| 4″ | 25.9 | 1.67 (s) (3H) |
| 5″ | 18.0 | 1.84 (s) (3H) |
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.