Table 2.
Anti Compound | Parent AA | δHa (JAX) | δHb (JBX) | Syn Compound | δHa (JAX) | δHb (JBX) | Ref |
---|---|---|---|---|---|---|---|
25a | Leucine | 2.34 (7.9) | 2.27 (3.4) | 25b | 2.48 (2.9) | 2.29 (10.0) | 28 |
26a | Valine | NA | NA | 26b | 2.58 (2.9) | 2.47 (9.1) | 29 |
27a | Valine | NA | NA | 27b | 2.64 (2.1) | 2.32 (10.6) | 28 |
28a | Isoleucine | NA | NA | 27b | 2.60 (2.7) | 2.48 (9.1) | 30 |
29a | Isoleucine | NA | NA | 29b | 2.60 (2.7) | 2.42 (8.7) | 30 |
30a | Phenylalanine | 2.40 (9.5) | 2.04 (2.4) | 30b | 2.63 (2.5) | 2.22 (10.1) | 28 |
31a | Phenylalanine | 2.59 (9.9) | 2.37 (2.6) | 31b | NA | NA | 31 |
32a | Phenylalanine | 2.57 (10.3) | 2.38 (3.0) | 32b | NA | NA | 31 |
33a | Phenylalanine | 2.54 (9.8) | 2.28 (3.1) | 33b | NA | NA | 32 |
34a | Phenylalanine | 2.38 (9.0) | 2.19 (4.0) | 34b | NA | NA | 32 |
35a | Phenylalanine | 2.55 (9.5) | 2.32 (3.0) | 35b | NA | NA | 32 |
36a | Isoleucine | NA | NA | 36b | 3.25 (1)a | 2.44 (8.1) | 8 |
37a | Isoleucine | NA | NA | 37b | 3.25 (2.7) | 2.48 (7.5) | 8 |
38a | Hydroxyglutamic acid | 2.62 (8.8) | 2.54 (5.0) | 38b | 2.74 (3.7) | 2.69 (10.5) | 33 |
39a | Hydroxyglutamic acid | 2.65 (9.2) | 2.55 (4.6) | 39b | NA | NA | 33 |
40a | Hydroxyglutamic acid | NA | NA | 40b | 2.62, m | 33 | |
41a | Phenylalanine | NA | NA | 41b | 2.65 (3.6) | 2.57 (5.6) | 34 |
42a (DMSO) | Tryptophan | NA | NA | 42b | 2.35 (3.7) | 2.28 (9.1) | 35 |
43a (DMSO) | Tyrosine | NA | NA | 41b | 2.38 (3.7) | 2.29 (9.5) | 36 |
44a (MeOH) | Leucine | 2.36 (7.2) | 2.27 (6.7) | NA | NA | NA | 37 |
broad proton signal with no discernable coupling to Hx that for illustrative purposes is considered approximately a 1 Hz coupling.