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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H1⋯O2	0.86	1.83	2.6558 (18)	160
O3—H3A⋯O1i	0.89 (1)	1.72 (1)	2.5995 (18)	173 (3)
O4—H4A⋯O2ii	0.89 (1)	1.72 (1)	2.6002 (17)	170 (3)
C1—H1A⋯O1iii	0.93	2.48	3.172 (2)	131

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