Table 2. Hydrogen-bond geometry (Å, °).

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N2—H2C⋯O7i	0.91	2.15	3.054 (4)	171
O2—H2⋯O1ii	0.86	2.34	3.084 (4)	145
C10—H10⋯O5iii	0.93	2.49	3.319 (5)	149

Symmetry codes: (i) ; (ii) ; (iii) .