Table 3.

Intermolecular interactions of compounds 4a.

D–X···A	D–X (Å)	X···A (Å)	D···A (Å)	<D–X···A (Å)	Symmetry Code
C2–H2···O1	0.95	2.56	3.450 (3)	156	1/2 + x, 1/2 + y, z
C11–H11A···O3	0.98	2.53	3.383 (3)	146	x, −1 + y, z
C17–H17···Cg	0.98	2.83	3.678	149	1/2 − x, −1/2 + y, 1/2 − z

Cg = the centroid of six-membered ring C19/C20/C21/C22/C23/C24.