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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H1A⋯O1	0.89	1.95	2.840 (2)	177
N1—H1C⋯O2i	0.89	1.97	2.857 (2)	177
N1—H1B⋯O3ii	0.89	2.05	2.911 (2)	162

Symmetry codes: (i) ; (ii) .