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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O32—H32⋯O33i	0.82 (5)	1.93 (5)	2.746 (3)	170 (5)
O33—H33⋯N24ii	0.85 (4)	2.03 (4)	2.828 (3)	157 (4)
O34—H34⋯O32iii	0.90 (6)	1.89 (6)	2.775 (4)	166 (5)
O33—H33⋯O23ii	0.85 (4)	2.69 (4)	3.536 (3)	171 (4)
C18—H18C⋯O23ii	0.96	2.46	3.362 (4)	157
C28—H28C⋯O34iv	0.97	2.60	3.471 (4)	150

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