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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O2—H2⋯O1i	0.82	1.82	2.6333 (18)	175
C20—H20⋯O1ii	0.93	2.66	3.507 (13)	153

Symmetry codes: (i) ; (ii) .