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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H4⋯O1i	0.907 (18)	2.315 (18)	3.1158 (15)	147.0 (13)
O2—H9⋯O1i	0.82	2.51	3.0673 (13)	127
O2—H9⋯N1i	0.82	1.99	2.7826 (16)	162
C11—H11A⋯O3ii	0.96	2.54	3.480 (2)	166
C11—H11C⋯O2iii	0.96	2.53	3.419 (2)	154

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