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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N2—H2A⋯O3iv	0.86	2.00	2.8384 (18)	164
O2—H2⋯O4	0.82	1.64	2.4603 (18)	178
O5—H5B⋯O2i	0.91	2.07	2.9493 (18)	164
O5—H5A⋯O6	0.86	1.97	2.8234 (19)	169
O6—H6C⋯O4ii	0.88	2.03	2.8835 (16)	163

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