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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N7—H7⋯S9i	0.81 (3)	2.61 (3)	3.383 (3)	160 (2)
N10—H10⋯O22ii	0.81 (2)	2.22 (3)	2.975 (3)	156 (2)
O17—H17⋯S9iii	0.97 (3)	2.25 (4)	3.211 (2)	173 (3)

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