Y. Yamada, I. Tanaka, T. Ashida
1981
Citations
0
Influential Citations
2
Citations
Journal
Bulletin of the Chemical Society of Japan
Abstract
The crystal structure of the title compound was determined by the X-ray method. The space group is P21,with a=18.741(3), b=12.602(1), c=9.553(1) A, β=118.46(2)°, and Z=4. The structure was determined successfully by the vector-space-search method, using a dimer structure of Boc–Pro–Val–Gly–OH as a rigid group. The final R value was 0.075 for 2025 non-zero reflections. Two independent molecules related by a pseudo twofold axis are linked by β-sheet-type hydrogen bonds. This kind of dimerization commonly occurs in all the Boc–Pro–X–Gly–OH peptides except Boc–Pro–Leu–Gly–OH. The packing similarity of these peptides is discussed.