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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H1A⋯O3	0.86	1.90	2.740 (3)	166
O3—H3A⋯N2i	0.92	1.96	2.872 (3)	169
O3—H3B⋯O2ii	0.76	2.30	3.050 (4)	170
C6—H6⋯O1ii	0.93	2.55	3.380 (4)	148

Symmetry codes: (i) ; (ii) .