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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O1—H1⋯N1	0.82	1.91	2.624 (2)	146
N2—H2⋯O2i	0.90 (1)	1.91 (1)	2.793 (3)	168 (3)
C7—H7⋯O2i	0.93	2.49	3.229 (2)	137

Symmetry code: (i) .