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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O1—H1⋯N1	0.82	1.89	2.621 (3)	149
O4—H4A⋯N3	0.82	1.88	2.619 (3)	149
N2—H2B⋯O5i	0.86	2.36	2.987 (3)	130
N4—H4B⋯O2ii	0.86	2.30	2.950 (3)	133

Symmetry codes: (i) ; (ii) .