|
1 |
2 |
Position |
13C |
1H (J in Hz) |
13C |
1H (J in Hz) |
α-MeSer |
|
|
|
|
1 |
174.7 |
|
175.3 |
|
2 |
59.5 |
|
60.0 |
|
3 |
62.8 |
3.89, d (10.4) |
62.8 |
3.88, d (10.2), 3.38, d (10.2) |
4 |
20.6 |
1.29, s |
21.0 |
1.28, s |
2-NH |
|
7.90, s |
|
7.90, s |
γ-OH-Pip |
|
|
|
|
5 |
170.1 |
|
170.6 |
|
6 |
48.5 |
4.78, m |
49.0 |
4.77, m |
7 |
33.4 |
2.25, 1.94, m |
33.9 |
2.24, 1.92, m |
8 |
61.3 |
3.65, m |
61.8 |
3.67, m |
9 |
52.7 |
2.79, m |
53.2 |
2.78, m |
9-NH |
|
5.28, dd (11.2. 3.1) |
|
5.28, dd (12.3, 3.2) |
Pip1 |
|
|
|
|
10 |
172.9 |
|
173.4 |
|
11 |
48.4 |
5.60, m |
49.0 |
5.60, m |
12 |
25.8 |
1.99, 1.78, m |
26.5 |
1.99, 1.74, m |
13 |
21.3 |
1.52, 1.42, m |
21.8 |
1.51, 1.43, m |
14 |
46.8 |
2.98, 2.60, m |
47.4 |
2.98, 2.58, m |
14-NH |
|
5.15, m |
|
5.15, m |
Pip2 |
|
|
|
|
15 |
172.2 |
|
172.7 |
|
16 |
48.4 |
5.60, m |
49.0 |
5.60, m |
17 |
25.8 |
1.99, 1.78, m |
26.5 |
1.99, 1.74, m |
18 |
21.3 |
1.52, 1.42, m |
21.8 |
1.51, 1.43, m |
19 |
46.8 |
2.98, 2.60, m |
47.4 |
2.98, 2.58, m |
19-NH |
|
5.15, m |
|
5.15, m |
Pip3 |
|
|
|
|
20 |
170.7 |
|
173.1 |
|
21 |
48.4 |
5.60, m |
49.0 |
5.60, m |
22 |
25.8 |
1.99, 1.78, m |
26.5 |
1.99, 1.74, m |
23 |
21.3 |
1.52, 1.42, m |
21.8 |
1.51, 1.43, m |
24 |
46.8 |
2.98, 2.60, m |
47.4 |
2.98, 2.58, m |
24-NH |
|
5.00, dd (12.5, 3.1) |
|
5.00, dd (12.2, 3.4) |
a-hydroxylic acid |
|
|
|
|
25 |
174.9 |
|
175.3 |
|
26 |
71.8 |
4.43, m |
72.3 |
4.40, m |
27 |
37.4 |
1.71, m |
31.0 |
1.95, m |
28 |
22.7 |
1.23, 1.00, m |
20.5 |
0.88, d (6.9) |
29 |
12.2 |
0.79, t (7.5) |
|
|
30 |
16.7 |
0.87, d (6.8) |
16.4 |
0.70, d (6.9) |
13C (150 MHz) and 1H (600 MHz) NMR spectra were taken on a NMR System 600
NB CL in DMSO-d6, and the solvent peak was used as an internal standard (δC 39.5, δH 2.50). |
