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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N2—H1A⋯O3i	0.94 (5)	2.12 (5)	3.029 (3)	162 (4)
N2—H1B⋯O2ii	0.80 (4)	2.49 (4)	3.223 (3)	154 (4)
N1—H3A⋯O1iii	0.90 (4)	2.17 (4)	2.994 (3)	152 (3)
N1—H3A⋯O1iv	0.90 (4)	2.44 (4)	3.003 (3)	121 (3)
N1—H3B⋯O4v	0.86 (4)	2.41 (4)	3.152 (3)	145 (3)

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