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	2.594 (2)	145
O3—H3⋯N4	0.82	1.82	2.538 (2)	146
N5—H5⋯N3i	0.891 (10)	2.109 (11)	2.991 (3)	171 (2)
N2—H2⋯O3	0.892 (10)	2.097 (10)	2.984 (2)	173 (2)

Symmetry code: (i) .