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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O1—H1A⋯O4i	0.92 (2)	1.94 (2)	2.860 (3)	173 (3)
O5—H5B⋯O4ii	0.85 (2)	1.69 (3)	2.518 (3)	164 (7)

Symmetry codes: (i) ; (ii) .