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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O1W—H2W1⋯O1	0.81 (3)	1.98 (3)	2.783 (3)	174 (3)
O1W—H1W1⋯O2i	0.87 (3)	2.13 (4)	2.977 (3)	166 (3)
C2—H2A⋯O2ii	0.93	2.52	3.374 (3)	153
C4—H4A⋯O1Wiii	0.93	2.43	3.316 (3)	158
C13—H13A⋯O3	0.93	2.59	3.495 (3)	164
C18—H18A⋯O2iv	0.96	2.49	3.426 (3)	166
C18—H18C⋯O3	0.96	2.57	3.202 (3)	123

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