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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O1—H1⋯N4	0.82	1.93	2.644 (4)	145
O2—H2⋯N8	0.82	1.90	2.612 (4)	144
N1—H1A⋯S1i	0.86	2.46	3.300 (4)	164
N5—H5⋯S2ii	0.86	2.41	3.252 (4)	165

Symmetry codes: (i) ; (ii) .