The nonsteroidal antiandrogen 4'-cyano-3-[(4-fluorophenyl)sulfonyl]-2- hydroxy-2-methyl-3'-(trifluoromethyl)-propionanilide (1) (ICI 176334) has been resolved by chromatographic separation of the diastereomeric (R)-camphanyl esters of the precursor thioether 2 followed by hydrolysis and oxidation of the isolated enantiomers. In addition, an asymmetric synthesis of (S)-3-bromo-2-hydroxy-2-methylpropanoic
非甾体类抗雄激素4'-
氰基-3-[(4-
氟苯基)磺酰基] -2-羟基-2-甲基-3'-(三
氟甲基)-丙酰
苯胺(1)(ICI 176334)已通过色谱分离进行了分离前体
硫醚2的非对映异构(R)-
樟脑酸酯,然后将分离的对映异构体
水解和氧化。此外,(S)-3-溴-2-羟基-2-甲基
丙酸(11)的不对称合成并随后转化为(S)-砜6a已确定,更有效的1对映体具有R绝对值组态。