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

Cg1 is the centroid of the C18–C23 ring.

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
C8—H8A⋯O1i	0.93	2.42	3.308 (2)	159
C13—H13A⋯O1ii	0.93	2.57	3.288 (2)	135
C21—H21A⋯Br1iii	0.93	2.93	3.4722 (19)	119
C9—H9A⋯Cg1iv	0.93	2.83	3.4479 (18)	125

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