The 17β-(substituted)-3-oxo-Δ1,2-azasteroids (I), wherein R1 is C1-C4 alkyl, OR2, wherein R2 is a C1-C4 alkyl radical, or NR3R4 , wherein R3 and R4, equal or different, represent hydrogen or a C1-C4 alkyl radical, can be obtained by means of a process comprising cleaving the oxazolidinedione ring present in a 2-(substituted)-3-hydroxyoxazolidinedione of formula (IV), wherein R5 is Br or trichloromethylsulfonyl, and removing the substituent at position 2, to form a double bond at position 1,2. Some compounds (I) are testosterone-5α-reductase inhibitors and can be used in the treatment of hyperandrogenic disorders.
17β-(substituted)-3-oxo-Δ1,2-azasteroids (I),其中 R1 是 C1-C4 烷基,OR2,其中 R2 是 C1-C4 烷基,或 NR3R4,其中 R3 和 R4 相同或不同,代表氢或 C1-C4 烷基、可通过以下方法获得:裂解式(IV)的 2-(取代的)-3-羟基
噁唑烷二酮(其中 R5 是 Br 或三
氯甲基磺酰基)中的
噁唑烷二酮环,并去除位置 2 上的取代基,从而在位置 1、2 上形成双键。某些化合物(I)是
睾酮-5α-还原酶
抑制剂,可用于治疗高雄激素紊乱。