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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O5—H1⋯N8i	0.83 (2)	2.01 (3)	2.835 (5)	177 (3)
O5—H2⋯O4	0.82 (6)	2.00 (6)	2.801 (5)	167 (6)
O6—H3⋯O2	0.82 (2)	2.10 (4)	2.914 (4)	169 (4)
O6—H4⋯N4ii	0.81 (5)	2.16 (6)	2.957 (5)	168 (4)
N9—H9A⋯O6	0.90	2.23	3.096 (5)	161
N9—H9B⋯O3iii	0.90	2.42	3.213 (4)	147 (2)
N11—H11B⋯O3iv	0.90	2.07	2.962 (4)	169 (2)
N10—H10⋯O1v	0.84 (3)	2.21 (3)	2.961 (4)	151 (2)

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