A novel route to anthrasteroids: X-ray crystal structure of 1(10 → 6)abeo-cholesta-5,7,9-trien-3-yl p-bromobenzoate
Abstract
Treatment of the adduct from a steroidal 5,7-diene, and 4-phenyl-1,2,4-triazoline-3,5-dione, with boron trifluoride-diethyl ether gives the corresponding anthra-steroid whose structure was determined by X-ray crystallography.