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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O1—H1A⋯Br1i	0.84	2.58	3.399 (6)	166
O1—H1B⋯Br1ii	0.84	2.54	3.374 (5)	171
N2—H2N⋯Br1iii	0.92	2.38	3.289 (4)	171
N5—H5N⋯Br2	0.92	2.35	3.267 (4)	174
C2—H2⋯O1iv	0.95	2.58	3.302 (8)	133
C11—H11⋯Br2ii	0.95	2.87	3.635 (6)	138
C13—H13⋯Br2v	0.95	2.76	3.712 (6)	177
C20—H20⋯O1vi	0.95	2.56	3.464 (8)	160

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