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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O3—H3A⋯N2i	0.85	1.97	2.816 (9)	173
O3—H3B⋯Br1ii	0.85	2.56	3.378 (6)	161

Symmetry codes: (i) ; (ii) .