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

Cg1 is the centroid of the C1–C5/O1 ring.

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
C2—H2⋯O2i	0.93	2.49	3.4223 (14)	176
C9—H9⋯O4ii	0.93	2.57	3.4164 (14)	151
C16—H16⋯O2iii	0.93	2.54	3.4436 (14)	163
C1—O2⋯Cg1iv	1.22 (1)	3.27 (1)	3.5408 (14)	93 (1)

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