Abstract
In the title compound, C
15
H
20
N
2
O
6
S, the C—SO
2
—NH—C torsion angle is 64.54 (14)°. In the molecule, there is a bifurcated N—H⋯(O,O) hydrogen bond, forming
S
(7) rings. In the crystal, inversion dimers are formed
via
O—H⋯O hydrogen bonds involving the carboxyl group, so forming
R
2
2
(8) rings. These dimers are further linked
via
pairs of C—H⋯O hydrogen bonds, forming a
C
(6) chain propagating along the
c
-axis direction.