Table 1.
1 | 2 | |||
---|---|---|---|---|
Posn | δHb | δCc | δHb | δCc |
1 | 204.4 C | 204.6 C | ||
2 | 5.82 s | 106.8 CH | 5.77 brs | 106.4 CH |
3 | 185.9 C | 184.4 C | ||
4 | 134.5 C | 131.8 C | ||
5 | 4.23 s | 84.5 CH | 6.27 dt (2.9, 1.4) | 137.3 CH |
6 | 4.74 d (5.2) | 85.1 CH | 5.33 ddt (5.5, 2.9, 1.4) | 81.3 CH |
7 | 4.21 m | 44.8 CH | 3.80 ddd (5.5, 3.2, 2.7) | 50.9 CH |
8 | 4.31 ddd (11.8, 1.4, 1.3) | 72.3 CH | 4.54 dt (11.8, 2.2) | 73.2 CH |
9 | 2.52 dd (13.7, 11.8) | 44.6 CH2 | 2.49 dd (13.9, 11.8) | 43.9 CH2 |
2.33 dd (13.7, 1.4) | 2.32 dd(13.9, 2.2) | |||
10 | 90.4 C | 89.8 C | ||
11 | 133.9 C | 133.1 C | ||
12 | 169.1 C | 168.6 C | ||
13 | 6.21 d (3.3) | 123.8 CH2 | 6.23 d (3.2) | 124.6 CH2 |
5.46 d (2.9) | 5.47 d (2.7) | |||
14 | 1.53 s | 21.2 CH3 | 1.54 s | 20.7 CH3 |
15 | 6.00 s | 127.1 CH2 | 4.16 ddd (12.8, 1.4, 1.3) | 72.7 CH2 |
5.78 s | 4.12 ddd (12.8,1.4, 1.3) | |||
1' | 166.9 C | 166.8 C | ||
2' | 135.4 C | 135.3 C | ||
3' | 5.95 m | 126.4 CH2 | 6.01 brs | 126.6 CH2 |
5.53 m | 5.55 m | |||
4' | 1.82 s | 18.0 CH3 | 1.83 s | 18.0 CH3 |
5-OMe | 3.73 s | 57.2 CH3 | ||
15-OMe | 3.40 s | 58.5 CH3 |
Assignments based on analysis of 2D NMR spectra.
Data (δ) measured at 500 MHz; s= singlet, br s=broad singlet, d=doublet, dd=doublet of doublets, ddd=doublet of doublets of doublets, dt=doublet of triplets, m=multiplet. J values are in Hz and are omitted if the signals overlapped as multiplets. The overlapped signals were assigned from HSQC and HMBC spectra without designating multiplicity.
Data (δ) measured at 125 MHz; CH3, CH2, CH, and C multiplicities were determined by HSQC experiment.