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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O1—H1⋯N1	0.82	1.92	2.635 (3)	145
N2—H2⋯O4	0.91 (1)	2.03 (3)	2.670 (3)	126 (3)
N2—H2⋯O1i	0.91 (1)	2.43 (2)	3.240 (4)	149 (3)
O5—H5⋯O2ii	0.82	2.05	2.865 (4)	172
O4—H4⋯O3i	0.82	1.79	2.607 (3)	174

Symmetry codes: (i) ; (ii) .