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

Cg2 is the centroid of the C11–C16 ring.

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H1A⋯O3i	0.86	2.02	2.877 (2)	180
N1—H1B⋯O3ii	0.86	2.17	2.921 (2)	145
N2—H2⋯O1i	0.86	1.97	2.823 (2)	171
C35—H35⋯Cg2iii	0.93	2.97	3.746 (2)	142
C54—H54⋯Cg2iv	0.93	2.82	3.531 (2)	134

Symmetry codes: (i) ; (ii) ; (iii) ; (iv) .