1.14.14.56 (3beta,16alpha)-3-hydroxy-20-oxopregn-5-ene-16-carbonitrile induces activity 717531 1.14.14.56 dexamethasone induces activity 718453 1.14.14.56 Phenobarbital induces activity 717531 1.14.14.56 pregnenolone 16alpha-carbonitrile induces activity 718453