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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O1—H1⋯N1	0.82	1.83	2.549 (4)	146
N2—H2⋯O3	0.895 (10)	1.92 (3)	2.623 (4)	134 (4)
C6—H6⋯O2i	0.93	2.45	3.315 (6)	154

Symmetry code: (i) .