Figure 1
The molecular structure of (I), with 50% probability displacement ellipsoids and atomic numbering indicated. The L-enantiomer was used as the asymmetric unit, D-enantiomers being generated by symmetry. The minor side-chain orientation [occupancy 0.0491 (18)], with N1—C2B—C3B—C4B in a gauche+ rather than a gauche− orientation (Table 1), is shown in a lighter colour. |