Table 1. Hydrogen-bond geometry (Å, °).

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H1S⋯O1i	0.904 (19)	2.012 (19)	2.914 (2)	176 (2)
N1—H1A⋯O3ii	0.862 (18)	2.123 (18)	2.9755 (17)	170 (2)
O2—H2⋯N2	1.05 (3)	1.56 (3)	2.5999 (18)	170 (2)

Symmetry codes: (i) ; (ii) .