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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H1N⋯O1i	0.89	2.35	3.035 (3)	134
N1—H1N⋯O1ii	0.89	2.35	3.035 (3)	134
N1—H2N⋯O1	0.89	2.68	3.435 (4)	143
N1—H2N⋯O3	0.89	2.21	3.0308 (14)	153

Symmetry codes: (i) ; (ii) .