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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H1⋯O1i	0.86	1.98	2.8146 (18)	163
C2—H2⋯N13i	0.93	2.59	3.236 (2)	127
N1′—H1′⋯O1′ii	0.86	2.00	2.8166 (15)	158

Symmetry codes: (i) ; (ii) .