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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
C8—H8⋯O2	0.93	2.26	2.850 (2)	121
C20—H20⋯O1i	0.93	2.52	3.374 (2)	152

Symmetry code: (i) .