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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O5—H11⋯O1i	0.87 (2)	2.09 (5)	2.885 (5)	153 (10)
O5—H10⋯O3ii	0.856 (19)	2.03 (4)	2.793 (4)	148 (6)
N2—H9⋯N3iii	0.86	2.39	3.080 (4)	138
N1—H2⋯O3	0.86	2.09	2.561 (5)	114

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