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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H1N1⋯O1i	0.85 (2)	2.14 (2)	2.9586 (14)	161.2 (17)
C9—H9A⋯O3ii	0.98	2.49	3.4623 (15)	175
C9—H9C⋯O3i	0.98	2.32	3.2760 (14)	165

Symmetry codes: (i) ; (ii) .