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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H1C⋯O1	0.89	1.91	2.785 (5)	167
N1—H1A⋯O1i	0.89	1.96	2.841 (5)	172
N1—H1B⋯O2ii	0.89	1.84	2.723 (5)	175

Symmetry codes: (i) ; (ii) .