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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H1n⋯O1i	0.88 (1)	2.07 (1)	2.908 (3)	160 (2)
O1w—H1w⋯O2	0.84 (2)	1.98 (2)	2.820 (3)	174 (2)
O1w—H2w⋯O1wii	0.84 (3)	1.97 (3)	2.773 (4)	162 (4)
O1w—H3w⋯O1wiii	0.84 (3)	1.98 (3)	2.799 (4)	167 (4)
C17—H17⋯O1wiv	0.95	2.59	3.517 (4)	164
C18—H18⋯O2v	0.95	2.47	3.367 (4)	157

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