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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
C12—H12⋯Cg1i	0.95	2.77	3.566 (2)	142

Symmetry code: (i) . Cg1 is the centroid of the C15–C20 ring.