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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O1—H1⋯N1	0.82	1.88	2.602 (4)	146
O3—H3⋯N4	0.82	1.91	2.625 (4)	145
N2—H2⋯O4i	0.90 (6)	2.22 (6)	3.109 (4)	168 (7)
N5—H5⋯O2	0.90 (5)	2.00 (4)	2.899 (4)	176 (7)

Symmetry code: (i) .