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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H1C⋯O2i	0.961 (16)	1.707 (16)	2.651 (1)	166 (2)
O1—H1D⋯O3i	0.877 (19)	1.682 (19)	2.549 (1)	169 (2)

Symmetry code: (i) .