申请人:Rajagopalan Raghavan
公开号:US20050137170A1
公开(公告)日:2005-06-23
The present invention discloses novel steroid mimics wherein a tri- or tetravalent phosphorous atom is isosterically substituted at any one of the seventeen positions occupied by the carbon atom in the steroidal skeleton, and wherein each adjacent position to the phosphorous is either unsubstituted or optionally substituted by nitrogen or an oxygen atom to satisfy the valency of said phosphorous atom. The invention is illustrated schematically below using both aromatic and non-aromatic steroids. Although the isosteric substitution
phosphorous atom in the above structures 3-7 is indicated at 13, 14, and 17 positions, it is to be noted that the phosphorous can be substituted at any one of the seventeen positions in non-aromatic or eleven positions in aromatic steroids. The phosphorous atom may be trivalent or tetravalent, and may be radioactive or non-radioactive. The adjacent atoms, X, Y, or Z may be carbon, oxygen, or nitrogen. Other positions in the steroid mimics 3-8 may be optionally substituted alkyl, aryl, or other polar or non-polar functional groups to optimize biodistribution, receptor binding, and pharmacokinetic properties.
本发明揭示了新型类固醇模拟物,其中三价或四价磷原子在类固醇骨架中所占据的十七个位置之一被同位素替代,且磷的每个相邻位置要么未被替代,要么可选地被氮或氧原子替代以满足所述磷原子的价。本发明使用芳香族和非芳香族类固醇进行了示例说明。尽管上述结构3-7中的同位素替代磷原子被指示在13、14和17位置,但应注意磷可以被替代在非芳香族类固醇的十七个位置中的任意一个,或在芳香族类固醇的十一个位置中的任意一个。磷原子可以是三价或四价,可以是放射性或非放射性。相邻的原子X、Y或Z可以是碳、氧或氮。类固醇模拟物3-8中的其他位置可以是可选的烷基、芳基或其他极性或非极性功能基团,以优化生物分布、受体结合和药代动力学特性。