A versatile synthesis of cyclic dipeptides using the stepwise construction of the piperazine-2,5-dione ring from simple precursors: synthetic sequence and the structure of a representative product, (3<i>RS</i>)-4-(2-allyl-3,5-dimethylphenyl)-1-benzyl-3-phenylpiperazine-2,5-dione
Authors of publication
Acosta Quintero, Lina M.; Palma, Alirio; Cobo, Justo; Glidewell, Christopher
Journal of publication
Acta Crystallographica Section C
Year of publication
2018
Journal volume
74
Journal issue
2
a
23.3641 ± 0.0008 Å
b
10.0825 ± 0.0003 Å
c
21.4524 ± 0.0007 Å
α
90°
β
115.885 ± 0.001°
γ
90°
Cell volume
4546.5 ± 0.3 Å3
Cell temperature
100 ± 2 K
Ambient diffraction temperature
100 ± 2 K
Number of distinct elements
4
Space group number
14
Hermann-Mauguin space group symbol
P 1 21/c 1
Hall space group symbol
-P 2ybc
Residual factor for all reflections
0.0787
Residual factor for significantly intense reflections
0.049
Weighted residual factors for significantly intense reflections
0.1034
Weighted residual factors for all reflections included in the refinement
0.1173
Goodness-of-fit parameter for all reflections included in the refinement
