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

Cg is the centroid of the C3–C8 ring.

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H1⋯O1i	0.86	2.04	2.902 (2)	178
C15—H15⋯Cg ii	0.93	2.63	3.557 (2)	173

Symmetry codes: (i) ; (ii) .