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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O1—H1⋯N1	0.82	1.87	2.603 (5)	148
N2—H21⋯O3i	0.87 (4)	2.16 (4)	2.986 (6)	160 (5)

Symmetry code: (i) .