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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N6—H6N⋯O5i	0.78 (3)	2.07 (3)	2.830 (2)	165 (2)
C3—H3⋯O5i	0.98	2.31	3.100 (3)	137

Symmetry code: (i) .