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

Cg1 and Cg2 are the centroids of the C1/C6–C8/C13/N1 and C1–C6 rings, respectively.

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O2—H2B⋯N2	0.933 (3)	1.942 (2)	2.873 (4)	175.2 (2)
C7—H7⋯O1	0.93	2.35	3.271 (4)	171
O1—H1⋯O2i	0.95 (1)	1.98 (5)	2.777 (4)	139 (6)
C16—H16⋯Cg1ii	0.93	2.93	3.773 (5)	152
C18—H18⋯Cg2iii	0.93	2.93	3.848 (5)	168

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