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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O4—H4A⋯O3	0.89 (2)	2.25 (2)	2.6598 (18)	108.0 (18)
O1—H1A⋯O2	0.85 (3)	2.22 (3)	2.6631 (18)	113 (2)
O4—H4A⋯N2i	0.89 (2)	1.90 (2)	2.7671 (18)	165 (2)
O1—H1A⋯O4ii	0.85 (3)	2.07 (3)	2.7934 (17)	143 (2)
C15—H15B⋯O4iii	0.97	2.59	3.402 (2)	141

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