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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O4—H41⋯O32iii	0.85 (2)	1.92 (2)	2.7449 (15)	165.3 (19)
O4—H42⋯N12iv	0.85 (2)	2.03 (2)	2.8414 (17)	159.0 (19)
O5—H52⋯N32v	0.84 (2)	2.05 (2)	2.8550 (17)	162 (2)
O5—H51⋯O31iii	0.86 (2)	1.85 (2)	2.7055 (15)	172 (2)

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