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    • 6. 发明申请
    • Processes of preparing asymmetric dinitrobenzamide mustard compounds, intermediate compounds useful therein and products obtained therefrom
    • 制备不对称二硝基苯甲酰胺芥末化合物的方法,其中使用的中间体化合物和由其获得的产物
    • US20100121091A1
    • 2010-05-13
    • US12310484
    • 2007-09-04
    • Graham John AtwellWilliam Alexander DennyShangjin Yang
    • Graham John AtwellWilliam Alexander DennyShangjin Yang
    • C07C303/28C07F9/09
    • C07D203/10C07C227/06C07C231/12C07C303/28C07C309/66C07C309/67C07D307/20C07F9/091C07C229/56C07C233/69
    • The invention relates to methods of preparing compounds of formula (II) wherein Z represents —OR1 or N(R2)R2a—, where R1 is lower alkylene (C1-C6), R2 is lower alkyl or H and R2a is lower alkylene (C1-C6) or H; Q is absent when R2a is H and is otherwise selected from the group consisting of H, —OH and protected forms of —OH; one of X and Y is halogen and the other is —OSO2R3, where R3 is selected from the group consisting of lower alkyl (C1-C6), phenyl and CH2phenyl. The method comprises the steps of: (a) reacting a compound of formula (I) with aziridineethanol or a 2-[(2-haloethyl)amino]ethanol in the presence of a metal halide, to form a compound of the formula (III) wherein one of X and E is halogen and the other is hydroxy, and (b) reacting the compound of formula (III) with an alkyl- or arylsulfonyl halide or alkyl- or arylsulfonyl anhydride to obtain a compound of the formula (II). The invention also relates to methods of preparing compounds of formula (IV) from the compounds of formula (II) so obtained, and to novel compounds of formula (IIb) useful as intermediates in these methods.
    • 本发明涉及制备式(II)化合物的方法,其中Z表示-OR1或N(R2)R2a,其中R1为低级亚烷基(C1-C6),R2为低级烷基或H,R2a为低级亚烷基 -C 6)或H; 当R 2a为H且Q选自H,-OH和-OH的保护形式时,Q不存在; X和Y之一是卤素,另一个是-OSO 2 R 3,其中R 3选自低级烷基(C 1 -C 6),苯基和CH 2苯基。 该方法包括以下步骤:(a)在金属卤化物的存在下使式(I)化合物与氮丙啶乙醇或2 - [(2-卤代乙基)氨基]乙醇反应,形成式(III)的化合物 )其中X和E之一是卤素,另一个是羟基,和(b)使式(III)化合物与烷基 - 或芳基磺酰卤或烷基 - 或芳基磺酰基酐反应得到式(II)化合物, 。 本发明还涉及由如此获得的式(II)化合物和式(Ⅱb)化合物制备式(Ⅳ)化合物的方法,可用作这些方法中的中间体。