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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H1B⋯N2	0.901 (18)	1.986 (19)	2.8811 (17)	172.8 (16)
N1—H1A⋯S1i	0.926 (17)	2.440 (17)	3.3610 (13)	172.8 (13)

Symmetry code: (i) .