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    • 4. 发明授权
    • Resolution of intermediates in the synthesis of substantially pure bicalutamide
    • 中间体在合成基本纯粹的比卡鲁胺中的分辨率
    • US06593492B1
    • 2003-07-15
    • US09695884
    • 2000-10-25
    • Nnochiri Nkem EkwuribeKenneth D. James
    • Nnochiri Nkem EkwuribeKenneth D. James
    • C07C6702
    • C07C315/06C07B2200/07C07C315/04C07C319/28C07C323/52C07C317/46
    • A methods of preparing a substantially pure enantiomer of an acylanilide such as Casodex® (bicalutamide) and/or its derivatives includes resolving an intermediate compound having the structure of Formula I: wherein R1 is alkyl or haloalkyl having up to 4 carbons; R2 is alkyl having up to 6 carbon atoms; R3 is a direct link or alkyl having up to 6 carbon atoms; R4 is alkyl, alkenyl, hydroxyalkyl or cycloalkyl each of up to 6 carbons; or R4 is phenyl which bears one, two or three substituents independently selected from hydrogen, halogen, nitro, carboxy, carbamoyl and cyano, and alkyl, alkoxy, alkanoyl, alkylthio, alkylsulphinyl, alkylsulphonyl, perfluoroalkyl, perfluoroalkylthio, perfluoroalkylsulphinyl, perfluoroalkylsulphonyl, alkoxycarbonyl and N-alkylcarbamoyl each of up to 4 carbon atoms, and phenyl, phenylthio, phenylsulphinyl and phenylsulphonyl; or R4 is naphthyl; or R4 is a 5- or 6-membered saturated or unsaturated heterocyclic which contains one, two or three heteroatoms selected from oxygen, nitrogen and sulfur, which heterocyclic may be a single ring or may be fused to a benzo-ring, and which heterocyclic is unsubstituted or bears one or two halogen, cyano or amino, or alkyl, alkoxy, alkylthio, alkylsulphinyl or alkylsulphonyl each of up to 4 carbon atoms, or oxy or hydroxy substituents, or which if sufficiently saturated may bear one or two oxo substituents; and X1 is oxygen, sulfur, sulphinyl (—SO—), sulphonyl (—SO2—), imino (—NH—) or alkylimino (—NR5—) where R5 is alkyl having up to 6 carbon atoms. The resolved intermediate compound of Formula I is then treated under conditions sufficient to provide a substantially pure enantiomer of an acylanilide such as Casodex® (bicalutamide) and/or its derivatives.
    • 制备酰基酰苯胺(比卡鲁前列酰胺)和/或其衍生物的基本上纯的对映异构体的方法包括拆分具有式I结构的中间体化合物:其中R1是具有至多4个碳的烷基或卤代烷基; R2是 具有至多6个碳原子的烷基; R 3是具有至多6个碳原子的直链或烷基; R 4是至多6个碳原子的烷基,烯基,羟基烷基或环烷基; 或R4是苯基,其具有独立地选自氢,卤素,硝基,羧基,氨基甲酰基和氰基的一个,两个或三个取代基,和烷基,烷氧基,烷酰基,烷硫基,烷基亚磺酰基,烷基磺酰基,全氟烷基,全氟烷基硫代,全氟烷基亚磺酰基,全氟烷基磺酰基,烷氧基羰基和 最多4个碳原子的N-烷基氨基甲酰基,苯基,苯硫基,苯基亚磺酰基和苯基磺酰基; 或R 4为萘基; 或R 4是含有一个,两个或三个选自氧,氮和硫的杂原子的5-或6-元饱和或不饱和杂环,该杂环可以是单环或可以与苯并环稠合,以及哪些杂环 或至少4个碳原子的烷基,烷氧基,烷硫基,烷基亚磺酰基或烷基磺酰基,或羟基或羟基取代基,或者如果足够饱和可以带有一个或两个氧代取代基; 和X 1是氧,硫,亚磺酰基(-SO-),磺酰基(-SO 2 - ),亚氨基(-NH-)或烷基亚氨基(-NR 5 - ),其中R 5是具有至多6个碳原子的烷基。 然后在足以提供酰基酰苯胺(比卡鲁胺)和/或其衍生物的基本上纯的对映异构体的条件下处理。