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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H1A⋯O7i	0.86	1.74	2.600 (2)	179
N2—H2A⋯O9	0.86	1.92	2.752 (2)	164
O6—H6A⋯N4ii	1.03	1.66	2.665 (2)	165
O5—H5A⋯O8iii	0.91	1.62	2.531 (2)	174
N5—H5B⋯O7	0.86	1.91	2.773 (2)	176
O9—H9A⋯O4iv	0.91	2.43	3.161 (2)	137
O9—H9B⋯O10v	0.85	1.92	2.754 (2)	165
O10—H10A⋯O8	0.91	1.85	2.740 (2)	169
O10—H10B⋯O9iii	0.84	2.16	2.917 (2)	149

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