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

Cg is the centroid of the C20–C25 ring.

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
C18—H18⋯Cg i	0.93	2.42	3.330 (3)	167
C19—H19A⋯N7ii	0.97	2.38	3.311 (3)	162
C21—H21⋯C27ii	0.93	2.89	3.603 (3)	134
C7—H7⋯S1iii	0.93	2.87	3.755 (3)	159
C4—H4B⋯N10iii	0.97	2.69	3.617 (3)	160
C4—H4B⋯C27iii	0.97	2.75	3.709 (3)	171

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