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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H1⋯O2i	0.79 (3)	2.22 (3)	2.971 (2)	161 (2)
C15—H15⋯O1ii	0.93	2.59	3.442 (3)	153

Symmetry codes: (i) ; (ii) .