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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H1A⋯O1i	0.91	1.87	2.773 (3)	171
N1—H1B⋯O2ii	0.91	1.96	2.823 (3)	158
N1—H1C⋯O2	0.91	1.90	2.781 (3)	164
O3—H3⋯O1	0.84	1.78	2.610 (3)	172
C1—H1D⋯O4iii	0.99	2.60	3.542 (4)	160
C3—H3A⋯O2i	0.95	2.59	3.456 (4)	152

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