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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N2—H2⋯O2i	0.90 (1)	2.02 (1)	2.898 (3)	164 (3)
O1—H1⋯N1	0.82	1.85	2.590 (3)	149

Symmetry code: (i) .