The absolute configuration of the title compound (TKS159, C15H22ClN3O3
) has been determined. The bent conformation of the molecule, in which
the aromatic and pyrrolidine rings are at nearly 60 degrees to each o
ther, is maintained by intra- and intermolecular hydrogen bonds. A thr
ee-dimensional network of hydrogen bonds is formed among the amino, hy
droxy and carbonyl groups of neighbouring molecules.