How is (3beta)-3-Hydroxycholest-5-en-7-one (CAS: 566-28-9) typically synthesized?

(3beta)-3-Hydroxycholest-5-en-7-one (CAS: 566-28-9) is typically synthesized via the reduction of 7-one to 7-ene followed by the introduction of a hydroxyl group at the 3beta position. Common methods include catalytic hydrogenation of cholest-5-en-7-one in the presence of a palladium catalyst, followed by an alcohol formation step using sodium hydride and ethanol. This compound can also be obtained through enzymatic reactions or chemical modifications of cholesterol derivatives.