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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H1A⋯O4i	0.86	2.00	2.848 (3)	167
O1—H1B⋯O2ii	0.82	1.80	2.619 (2)	176
N2—H2A⋯O3	0.86	1.94	2.795 (2)	177
N3—H3A⋯O3i	0.86	2.09	2.899 (3)	157
N3—H3B⋯O2	0.86	2.17	2.987 (2)	158

Symmetry codes: (i) ; (ii) .