Table 2. Hydrogen-bond geometry (Å, °).

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H1⋯O2ii	0.88	1.89	2.766 (2)	172
O1W—H1WA⋯O2iii	0.86 (2)	1.91 (2)	2.760 (2)	171 (3)
O1W—H1WB⋯O2iv	0.85 (2)	1.98 (2)	2.812 (2)	167 (2)

Symmetry codes: (ii) ; (iii) ; (iv) .