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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O5—H5B⋯O4i	0.85	1.95	2.759 (3)	158
O5—H5A⋯O4ii	0.85	1.92	2.730 (3)	160
O5—H5A⋯O3ii	0.85	2.37	3.051 (3)	137
O6—H6B⋯O3iii	0.85	2.12	2.958 (3)	169
O6—H6A⋯O4iv	0.85	2.10	2.833 (3)	144

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