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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O4—H1W⋯O5i	0.85	2.57	3.111 (9)	123
O4—H2W⋯N7	0.85	1.97	2.810 (6)	167
O5—H4W⋯N5ii	0.85	2.25	2.830 (15)	126

Symmetry codes: (i) ; (ii) .