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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H1N⋯O1i	0.85 (2)	2.00 (2)	2.846 (5)	170 (5)

Symmetry code: (i) .