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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
C4′—H4′⋯O2i	0.93	2.54	3.459 (2)	169
C2′—H2′⋯O4ii	0.93	2.46	3.153 (2)	132
C1—H1C⋯O4iii	0.96	2.57	3.314 (2)	134

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