Nine additional compounds of the pregnane series have been isolated from adrenals. Elucidation of their constitution showed that four are known compounds, but five are new. They are derived from the classical corticoids by hydroxylation in the 6β- or 19-positions, by reduction of the 4,5-double bond or 20-keto group, and by oxydation of the angular 18-methyl group not merely to an aldehyde, as in aldosterone
                                    从肾上腺中分离出了另外九种孕烷系列化合物。对它们的组成的阐明表明,四种是已知化合物,但是五种是新化合物。它们通过6β或19位羟基化,4,5-双键或20-酮基还原以及角18-甲基不仅氧化成醛而从经典皮质类
固醇衍生而来,如在
醛固酮中,但具有羧基。后一种衍
生物具有特殊的生化意义。