The double [4+2] cycloadditions between fullerene and steroid- appended dibenzoates 7 and 8, the reaction sites of which were controlled by diols in chiral template molecules, afforded fullerene-steroid bisadducts 11 and 12 regio- and chiroselectively. CD spectroscopic studies of 11 and 12 indicated that the magnitude of the cotton effects changes reflecting the chiral structure of the steroid moiety in 11 and 12.
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