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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H1N⋯O1i	0.84 (2)	2.13 (2)	2.937 (3)	161 (3)
C1—H1C⋯O1i	0.98	2.44	3.382 (4)	162
C10—H10⋯O1i	0.95	2.57	3.321 (4)	137

Symmetry code: (i) .