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

Cg3 is the centroid of the C15–C18/C22/C23 ring.

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
C9—H91⋯O8i	0.96	2.49	3.449 (2)	171
C7—H71⋯Cg3ii	0.95	2.84	3.429 (2)	121
C20—H202⋯Cg3iii	0.99	2.91	3.777 (2)	146

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