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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H1N⋯O1i	0.86 (2)	2.10 (2)	2.9368 (18)	163.6 (19)
O2—H2O⋯O3ii	0.88 (3)	1.80 (3)	2.679 (2)	172 (3)

Symmetry codes: (i) ; (ii) .