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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N2—H2A⋯O1i	0.91 (1)	1.99 (1)	2.890 (2)	170 (2)
N3—H3A⋯O2i	0.90 (1)	2.28 (1)	3.157 (2)	168 (2)

Symmetry code: (i) .