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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O2—H2⋯N3	0.82	1.84	2.559 (4)	146
N2—H2B⋯O1i	0.900 (10)	2.05 (2)	2.862 (4)	150 (4)
C2—H2A⋯O1ii	0.93	2.50	3.396 (4)	161

Symmetry codes: (i) ; (ii) .