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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N3—H3B⋯O1i	0.86	2.41	3.1611 (15)	147
N1—H1A⋯O1ii	0.86	2.29	3.0856 (16)	154
N1—H1B⋯N2	0.86	2.03	2.6626 (16)	130

Symmetry codes: (i) ; (ii) .