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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H1⋯O1i	0.86	2.01	2.8257 (19)	159
C4—H4⋯O1ii	0.93	2.52	3.312 (2)	144

Symmetry codes: (i) ; (ii) .