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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H1A⋯Br1	0.92	2.52	3.331 (2)	148
N1—H1A⋯Br1i	0.92	2.89	3.389 (2)	115
N1—H1B⋯Br1ii	0.92	2.40	3.292 (2)	164
C4—H4A⋯O1iii	0.99	2.52	3.366 (4)	143
C1—H1C⋯O1iv	0.99	2.59	3.498 (4)	152

Symmetry codes: (i) ; (ii) ; (iii) ; (iv) .