The presence of 17β-groups (methoxy-, acetoxy-, ethyl, or 1,5-dimethylhexyl) or of unsaturation in ring D had little effect upon the position of equilibrium between substituted 5α- and 5β-androstan-6-ones.
                                    在环D中17β-基团(甲氧基,乙酰氧基,乙基或1,5-二甲基己基)的存在或不饱和对取代的5α-和5β-
雄甾烷-6-之间的平衡位置影响很小。