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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N3—H3⋯O2	0.83 (2)	2.001 (18)	2.5942 (16)	127.9 (16)
N4—H4⋯O5i	0.85 (2)	1.95 (2)	2.7748 (16)	164.0 (17)
C5—H5⋯O4ii	0.95	2.44	3.249 (2)	143
C8—H8A⋯O2iii	0.98	2.58	3.269 (2)	128
C8—H8C⋯O3iv	0.98	2.57	3.527 (2)	165

Symmetry code: (i) ; (ii) ; (iii) ; (iv) .