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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H1⋯O1i	0.84 (2)	2.25 (2)	2.981 (4)	146 (2)
N1—H1⋯O1ii	0.84 (2)	2.25 (2)	2.981 (4)	146 (2)
C5—H5A⋯O1iii	0.97	2.62	3.388 (4)	136

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