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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H1N⋯Br4	0.85	2.37	3.221 (4)	175
C6—H6A⋯Br4	0.95	2.91	3.698 (4)	141
C7—H7A⋯O1iii	0.98	2.52	3.424 (5)	153
C7—H7B⋯O1iv	0.98	2.47	3.390 (5)	157

Symmetry codes: (iii) ; (iv) .