Table II.
Backbone Dihedral Anglesa of Crystalline Ac-Clp–OMe (10) Derived from X-Ray Diffraction Analysis Compared to Those of Ac-Hyp-OMe69
Compound | Ring Pucker | φ | ψ | ω | δBD (Å) | τBD (°) |
---|---|---|---|---|---|---|
Ac-Clp-OMe (10) | Cγ-exo | −56.0 | 147.5 | 179.2 | 2.80 | 94.1 |
Ac-Hyp-OMe | Cγ-exo | −56.9 | 150.8 | 178.9 | 2.82 | 91.8 |
For both 10 and Ac–Hyp–OMe, there were two independent molecules in the asymmetric unit of the crystal. Values shown here are the average for these two molecules.