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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N3—H32⋯N2i	0.85 (4)	2.47 (4)	3.198 (4)	144 (3)
N3—H31⋯O1ii	0.90 (4)	2.38 (4)	3.252 (4)	162 (3)
C3—H3⋯O1iii	0.93	2.45	3.323 (3)	156

Symmetry codes: (i) ; (ii) ; (iii) .