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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H1A⋯O1i	0.86	2.10	2.881 (4)	151
N2—H2A⋯O3ii	0.86	2.07	2.874 (3)	157

Symmetry codes: (i) ; (ii) .