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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
C15—H15C⋯O1	0.96	2.56	3.163 (4)	121
C18—H18⋯O1i	0.93	2.56	3.472 (3)	167
C23—H23B⋯Cg1ii	0.96	2.89	3.718 (2)	144

Symmetry codes: (i) ; (ii) . Cg1 is the centroid of the C16–C21 ring.