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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N3—H3A⋯O1	0.86	2.06	2.7196 (19)	133
N4—H4A⋯N2i	0.92 (2)	2.21 (2)	3.121 (2)	169.8 (18)

Symmetry code: (i) .