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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O3—H3A⋯N1	0.97 (4)	1.73 (4)	2.636 (4)	154 (4)
N2—H2A⋯N3i	0.89 (3)	1.97 (3)	2.856 (3)	179 (3)
C6—H6⋯O1ii	0.93	2.58	3.334 (4)	139
C16—H16⋯O2iii	0.93	2.52	3.351 (4)	148

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