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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H1⋯O1i	0.86	2.01	2.854 (4)	168
N3—H3⋯O2ii	0.86	2.09	2.928 (4)	166

Symmetry codes: (i) ; (ii) .