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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H5⋯O1i	0.87 (2)	2.05 (2)	2.9098 (19)	169.5 (18)
N2—H24⋯O2ii	0.862 (19)	2.16 (2)	2.9774 (19)	157.9 (16)
N3—H4⋯O3ii	0.93 (2)	1.87 (2)	2.787 (2)	168.1 (18)
O3—H1⋯O1iii	0.94 (3)	1.88 (3)	2.747 (2)	152 (3)
O3—H2⋯O2	0.87 (3)	1.99 (3)	2.751 (2)	146 (2)

Symmetry codes: (i) ; (ii) ; (iii) .