Table 2. Hydrogen-bond geometry (Å, °).

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O1—H1B⋯N2i	0.82 (3)	2.08 (3)	2.898 (3)	178 (3)
N3—H3⋯O5ii	0.88	1.89	2.755 (2)	169
O4—H4A⋯O3	0.89 (2)	1.58 (2)	2.459 (2)	173 (3)

Symmetry codes: (i) ; (ii) .