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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N2—H2A⋯N4i	0.86	2.42	3.091 (3)	135
N2—H2B⋯N3	0.86	2.42	2.751 (3)	103
C10—H10A⋯O1ii	0.93	2.49	3.156 (5)	128

Symmetry codes: (i) ; (ii) .