[23R,24R,(-)]-23,24-Methylenecholesterol

[23R,24R,(-)]-23,24-Methanocholest-5-en-3β-ol

[20R,(-)]-20-Methyl-21-[(1R,2R)-2-(1-methylethyl)cyclopropane-1-yl]pregn-5-en-3β-ol