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.
The 1H- and 13C-NMR (DMSO-d6, 500 and 125 MHz) and HMBC assignment for 1.
| Position | δC, Type | δC (J in Hz) | HMBC |
|---|---|---|---|
| 1 | 61.6, CH2 | 4.56, d (14.9) | C-3, 4a, 10a |
| 4.33, d (14.9) | C-10a | ||
| 3 | 69.4, CH | 3.83, m | C-1 |
| 4 | 33.5, CH2 | 2.66, d (17.3) | C-3, 4a, 11 |
| 2.56, dd (17.3, 9.8) | C-3, 4a, 10a | ||
| 4a | 160.0, C | - | |
| 5a | 157.4, C | - | |
| 6 | 102.0, CH | 6.78, s | 4 |
| 7 | 138.2, C | - | |
| 8 | 111.8, CH | 6.27, s | |
| 9 | - | - | |
| 9a | 119.7, C | - | |
| 10 | 173.0, CO | - | |
| 10a | 115.3, C | - | |
| 11 | 20.8, CH3 | 1.28, d (6.2) | C-3, 4 |
| 12 | 161.8, CO | - |
