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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O1W—H1WA⋯O3i	0.82 (2)	2.022 (15)	2.7507 (18)	148 (2)
O1W—H1WB⋯O1	0.82 (2)	2.018 (14)	2.788 (2)	156 (3)
O2W—H2WA⋯O1ii	0.81 (2)	1.962 (10)	2.7496 (19)	161 (2)
O2W—H2WB⋯O2iii	0.81 (2)	1.96 (2)	2.7979 (18)	173 (2)
N2—H7A⋯O3iv	0.86	2.19	2.981 (2)	154

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