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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O7—H7A⋯O3i	0.85	1.92	2.751 (6)	167
O7—H7B⋯O2iv	0.85	1.91	2.754 (6)	178

Symmetry codes: (i) ; (iv) .