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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H1C⋯O5i	0.93	2.29	3.094 (9)	144
N2—H2C⋯O6′ii	0.93	2.03	2.952 (10)	173
O4—H4⋯O1W	0.84	1.76	2.572 (4)	162
O1W—H2W⋯O8	0.855 (11)	2.13 (3)	2.827 (5)	138 (4)
O1W—H1W⋯O1iii	0.860 (11)	1.892 (16)	2.734 (3)	166 (4)

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