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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N11—H11A⋯O4i	0.86	2.02	2.859 (6)	166
N11—H11B⋯O6ii	0.86	2.12	2.918 (6)	154
N12—H12A⋯O3i	0.86	2.18	3.033 (6)	169
N12—H12B⋯N3	0.86	2.24	3.042 (7)	156
N13—H13B⋯O8	0.86	2.10	2.847 (6)	146
N13—H13C⋯O6ii	0.86	2.35	3.083 (6)	144

Symmetry codes: (i) ; (ii) .