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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H1A⋯N2i	0.87 (2)	2.03 (1)	2.888 (2)	172 (2)
N1—H1B⋯N2ii	0.86 (1)	2.08 (1)	2.911 (3)	162 (2)
N1—H1C⋯S1iii	0.87 (2)	2.48 (3)	3.285 (2)	155 (2)

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