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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H1⋯O15i	0.83 (4)	2.06 (4)	2.882 (3)	175 (4)
N3—H3⋯S2ii	0.90 (4)	2.43 (4)	3.328 (3)	172 (3)
C61—H61B⋯O15i	0.96	2.58	3.405 (4)	144

Symmetry codes: (i) ; (ii) .