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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H1A⋯O1	0.86	2.06	2.923 (3)	177
N2—H2A⋯N5i	0.86	2.24	3.081 (3)	168
C4—H4A⋯N3	0.93	2.30	2.905 (3)	122
C1—H1D⋯Cg1ii	0.96	2.86	3.653 (4)	145

Symmetry codes: (i) ; (ii) . Cg1 is the centroid of the C2–C7 ring.