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    Process for the preparation of 3-oximino steroids
    3.
    发明申请
    Process for the preparation of 3-oximino steroids 审中-公开
    3-肟基类固醇的制备方法

    公开(公告)号：US20060035872A1

    公开(公告)日：2006-02-16

    申请号：US11202191

    申请日：2005-08-12

    申请人： Marco Villa ,  Roberta Fretta ,  Nicola Diulgheroff

    发明人： Marco Villa ,  Roberta Fretta ,  Nicola Diulgheroff

    IPC分类号： A61K31/56 ,  C07J41/00

    CPC分类号： C07J41/00 ,  C07J41/0016

    摘要： The present invention provides a method of preparing norelgestromin or norgestimate by reacting the corresponding 3-oxosteroid precursor with hydroxylamine HCl and a base to obtain a reaction mixture forming norelgestromin or norgestimate; monitoring the anti/syn ratio of the norelgestromin or norgestimate produced in the reaction mixture; adding a base to the reaction mixture to neutralize acidity in the reaction mixture when a desired anti/syn ratio is detected; and isolating the norelgestromin or norgestimate. The present invention also provides a process allowing a control of the formation of the anti isomer and syn isomer of norelgestromin or norgestimate by reacting the corresponding 3-oxosteroid precursor with hydroxylamine HCl and a base to obtain a reaction mixture forming norelgestromin or norgestimate; regulating the acidity of the reaction mixture to adjust the anti/syn ratio of the norelgestromin or norgestimate produced in the reaction mixture; adding a base to the reaction mixture to neutralize acidity in the reaction mixture when a desired anti/syn ratio is detected; and isolating the norelgestromin or norgestimate.

    摘要翻译： 本发明提供了通过使相应的3-氧代甾体前体与羟胺HCl和碱反应来制备诺美孕酮或诺孕酯的方法，以获得形成诺美孕酮或诺孕酯的反应混合物; 监测反应混合物中产生的去甲孕酮或诺孕酯的抗/顺应比; 当检测到所需的抗/顺式比时，向反应混合物中加入碱以中和反应混合物中的酸度; 并分离去甲孕酮或诺孕酯。 本发明还提供一种方法，其通过使相应的3-氧代甾体前体与羟胺HCl和碱反应以获得形成去甲孕激素或诺孕酯的反应混合物，从而控制去甲孕酮或诺孕酯的抗异构体和顺式异构体的形成; 调节反应混合物的酸度以调节反应混合物中产生的诺美辛溴或诺孕酯的抗/顺比; 当检测到所需的抗/顺式比时，向反应混合物中加入碱以中和反应混合物中的酸度; 并分离去甲孕酮或诺孕酯。

    Process for the preparation of anticancer drugs
    6.
    发明申请
    Process for the preparation of anticancer drugs 审中-公开
    抗癌药物的制备工艺

    公开(公告)号：US20100099888A1

    公开(公告)日：2010-04-22

    申请号：US12592066

    申请日：2009-11-17

    申请人： Marco Villa ,  Roberta Fretta ,  Nicola Diulgheroff ,  Alessandro Pontiroli

    发明人： Marco Villa ,  Roberta Fretta ,  Nicola Diulgheroff ,  Alessandro Pontiroli

    IPC分类号： C07D249/08

    CPC分类号： C07D249/08

    摘要： A process for preparing Anastrozole is provided. In the process the steps of a. combining 3,5-bis(2-cyanoisopropyl)toluene, a solvent selected from the group consisting of acetonitrile, dichloromethane and chlorobenzene, a brominating reagent selected from a group consisting of N-bromosuccinimide and 1,3-dibromo-5,5-dimethylhydantoin, and 2,2′-azobis(2-methylpropionitrile); b. heating; c. combining with 1,2,4-triazole, a solvent selected from a group consisting of N-methylpyrrolidine, dimethylformamide, mixtures of NMP and DMF, dimethylsulfoxide, mixtures of DMSO and toluene, acetone, ACN, and tetrahydrofuran, a base selected from a group consisting of NaOH, KOH, K2CO3, and Na2CO3, and 1,3-benzendiacetonitrile-5-(bromomethyl)-α,α,{acute over (α)},{acute over (α)}-tetramethyl, at a temperature below −20° C. are performed.

    摘要翻译： 提供了一种制备阿那曲唑的方法。 在这个过程中，a。 结合3,5-双（2-氰基异丙基）甲苯，选自乙腈，二氯甲烷和氯苯的溶剂，选自N-溴代琥珀酰亚胺和1,3-二溴-5,5-二氯苯的溴化试剂， 二甲基乙内酰脲和2,2'-偶氮双（2-甲基丙腈）; b。 加热; C。 与1,2,4-三唑结合，选自N-甲基吡咯烷，二甲基甲酰胺，NMP和DMF的混合物，二甲基亚砜，DMSO和甲苯的混合物，丙酮，ACN和四氢呋喃的溶剂，选自 由NaOH，KOH，K 2 CO 3和Na 2 CO 3组成的组，和1,3-苯撑二乙腈-5-（溴甲基）-α，α，（急性（α）}，{急（α）} - 低于-20℃。