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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O2—H2⋯O1i	0.82	1.99	2.751 (4)	155
O2—H2⋯N2i	0.82	2.48	3.012 (4)	124
N1—H1⋯O2ii	0.90 (1)	2.12 (2)	2.987 (4)	164 (5)

Symmetry codes: (i) ; (ii) .