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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H1N⋯O1i	0.83 (2)	2.14 (2)	2.948 (2)	164 (2)
O5—H5O⋯O4ii	0.83 (2)	1.83 (2)	2.663 (3)	178 (3)

Symmetry codes: (i) ; (ii) .