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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O1—H1o⋯O3i	0.84 (2)	1.87 (2)	2.7121 (18)	177 (2)
O3—H3o⋯O2ii	0.85 (2)	1.83 (2)	2.6667 (17)	168 (2)
C7—H7⋯O1iii	0.95	2.49	3.3280 (18)	147
C17—H17a⋯F6iv	0.99	2.51	3.3123 (17)	138

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