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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H1⋯O8i	0.86	2.15	2.9262 (18)	150
O4—H4⋯O8ii	0.92	1.85	2.767 (2)	180

Symmetry codes: (i) ; (ii) .