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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O2—H2A⋯O6	0.82	1.78	2.598 (2)	173
O5—H5⋯O7	0.82	1.89	2.627 (2)	149
O5—H5⋯O4	0.82	2.32	2.741 (3)	113