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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
C2—H2B⋯O1i	0.97	2.54	3.3808 (19)	145
C18—H18B⋯O3ii	0.96	2.50	3.4227 (19)	161

Symmetry codes: (i) ; (ii) .