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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O5—H5A⋯N5i	0.84	2.16	2.924 (3)	151
O5—H5B⋯O6ii	0.84	1.88	2.704 (3)	168
O6—H6A⋯O2	0.84	1.95	2.791 (3)	175
O6—H6B⋯O4iii	0.84	1.87	2.711 (4)	176
C3—H3⋯O5iv	0.95	2.46	3.399 (4)	170
C5—H5⋯O3i	0.95	2.59	3.338 (4)	136
C6—H6⋯O1	0.95	2.33	2.983 (4)	125
C18—H18⋯O2	0.95	2.55	3.198 (4)	125

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