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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N6—H1N6⋯N3i	0.81 (3)	2.47 (3)	2.9835 (19)	123 (2)
N6—H1N6⋯N4i	0.81 (3)	2.40 (3)	3.050 (2)	138 (3)
N6—H2N6⋯O4ii	0.86 (3)	2.15 (3)	2.989 (2)	164 (2)
C14—H14B⋯O3iii	0.97	2.50	3.416 (2)	157

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