Process for producing optically active azetidine-2-carboxylic acids
    21.
    发明授权
    Process for producing optically active azetidine-2-carboxylic acids 失效
    光学活性氮杂环丁烷-2-羧酸的制备方法

    公开(公告)号:US06838567B1

    公开(公告)日:2005-01-04

    申请号:US09959980

    申请日:2000-05-15

    摘要: An optically active N-protected azetidine-2-carboxylic acid (5) can be produced by preparing an optically active 4-amino-2-halobutyric acid (3) by halogenating an optically active 3-hydroxy-2-pyrrolidinone (1) with inversion of configuration to prepare an optically active 3-halo-2-pyrrolidinone (2) followed by hydrolysis or by halogenating an optically active 4-amino-2-hydroxybutyric acid ester (6) with inversion of configuration to prepare an optically active 4-amino-2-halobutyric acid ester (7) followed by hydrolysis or by halogenating the compound (6) with inversion of configuration to prepare the compound (7), cyclizing the same to prepare the compound (2) followed by hydrolysis, further cyclizing the compound (3) followed by treating the reaction product with an amino group-protecting agent. The thus-obtained compound (5) can be improved its optical purity further by recrystallization

    摘要翻译: 光学活性的N-保护的氮杂环丁烷-2-羧酸(5)可以通过用光学活性的3-羟基-2-吡咯烷酮(1)卤化来制备光学活性的4-氨基-2-卤代丁酸(3) 反型构型以制备光学活性3-卤代-2-吡咯烷酮(2),然后进行水解,或通过用反型构型卤化光学活性的4-氨基-2-羟基丁酸酯(6)以制备光学活性的4-氨基 -2-卤代丁酸酯(7),然后进行水解,或者通过将构型反转卤化化合物(6)以制备化合物(7),使其环化以制备化合物(2),然后水解,进一步环化化合物 3),然后用氨基保护剂处理反应产物。 由此获得的化合物(5)可以通过再结晶进一步提高其光学纯度

    Ultra micro indentation testing apparatus
    22.
    发明授权
    Ultra micro indentation testing apparatus 失效
    超微压痕测试仪

    公开(公告)号:US06755075B2

    公开(公告)日:2004-06-29

    申请号:US09958477

    申请日:2001-11-21

    IPC分类号: G01N348

    摘要: An ultra micro indentation testing apparatus comprises: a lever stand provided with a center lever having a silicon probe and a diamond indenter disposed therein; a moving mechanism for moving the lever stand in a triaxial direction; in indentation mechanism for pushing the diamond indenter in a sample; a displacement gage for measuring a displacement of the silicon probe or the diamond indenter; and an optical picture device for positioning the silicon probe or the diamond indenter and observing the surface of the sample. The apparatus has, in combination, a hardness measuring function based on the measurement of the force and depth of the diamond indenter pushed in the surface of the sample, an atomic force microscopic function of acquiring the shape of the surface of the sample based on a displacement of the diamond indenter or the silicon probe, and an optical microscopic function of observing the surface of the sample by the optical picture device. Furthermore, the testing apparatus is equipped with both the function of measuring the hardness of the surface of material in a ultra micro region and the surface observing function with high accuracy.

    摘要翻译: 超微压痕测试装置包括:杆架,设置有具有硅探针和设置在其中的金刚石压头的中心杆; 用于使杆架沿三轴方向移动的移动机构; 用于将金刚石压头推入样品的压痕机构; 用于测量硅探针或金刚石压头的位移的位移计; 以及用于定位硅探针或金刚石压头并观察样品表面的光学图像装置。 该装置组合地具有基于在样品表面推动的金刚石压头的力和深度的测量的硬度测量功能,基于样品的表面获取样品的形状的原子力显微镜功能 金刚石压头或硅探针的位移,以及通过光学图像装置观察样品表面的光学显微镜功能。 此外,测试装置既具有测量超微区域中的材料表面的硬度和高精度的表面观察功能的功能。

    Method of testing hardness of micro region
    23.
    发明授权
    Method of testing hardness of micro region 有权
    测试微区硬度的方法

    公开(公告)号:US06457349B1

    公开(公告)日:2002-10-01

    申请号:US09647099

    申请日:2000-11-20

    IPC分类号: G02N330

    摘要: A testing method is provided for determining the hardness of a micro region, using indentation curves indicating relations between observed penetration depths and indenting forces when an arbitrary shaped indenter is pushed into standard samples of plural types. The method involves (1) measuring relations between observed penetration depths and indenting forces when the arbitrary shaped indenter is pushed into standard samples of plural types, to prepare the indentation curves, (2) determining a reference function indicative of macro hardness, by standardizing the relations between the indenting forces and macro hardness at the same penetration depth as an index, for the indentation curves of the standard samples of plural types, (3) measuring a relation between the penetration depth and indenting force of an arbitrary sample, and (4) determining the hardness of a micro region from the measured value in step (3) according to the reference function as determined in step (2).

    摘要翻译: 提供了一种用于确定微区域的硬度的测试方法,使用指示当任意形状的压头被压入多种类型的标准样品时观察到的穿透深度和压痕力之间的关系的压痕曲线。 该方法包括(1)当将任意形状的压头推入多种类型的标准样品时测量观察到的穿透深度和压痕力之间的关系,以制备压痕曲线,(2)通过标准化标准化来确定指示宏观硬度的参考功能 对于多种类型的标准样品的压痕曲线,(3)测量任意样品的穿透深度和压痕力之间的关系,以及(4)的断裂力与相同穿透深度的宏观硬度之间的关系为 )根据步骤(2)中确定的参考函数从步骤(3)中的测量值确定微区域的硬度。

    Process for the preparation of 3-hydroxytetrahydrofuran
    24.
    发明授权
    Process for the preparation of 3-hydroxytetrahydrofuran 失效
    3-羟基四氢呋喃的制备方法

    公开(公告)号:US06359155B1

    公开(公告)日:2002-03-19

    申请号:US09719686

    申请日:2001-02-15

    IPC分类号: C07D30720

    摘要: An industrial advantage process for producing high-purity 3-hydroxytetrahydrofuran easily and simply, which comprises reducing a 4-halo-3-hydroxybutyric acid ester (1) with a boron hydride compound and/or an aluminum hydride compound as a reducing agent in an organic solvent immiscible with water; treating the reaction mixture with an acid and water to thereby effect conversion to the corresponding 4-halo-1,3-butanediol and at the same time giving an aqueous solution containing said compound; carrying out the cyclization reaction of the 4-halo-1,3-butanediol in said aqueous solution; extracting the resulting 3-hydroxytetrahydrofuran from the 3-hydroxytetrahydrofuran-containing aqueous solution using an organic solvent immiscible with water; and isolating the 3-hydroxytetrahydrofuran by concentration and/or distillation of the solution obtained.

    摘要翻译: 用于容易且简单地生产高纯度3-羟基四氢呋喃的工业优势方法,其包括用硼氢化合物和/或氢化铝化合物作为还原剂还原4-卤代-3-羟基丁酸酯(1) 与水不混溶的有机溶剂;用酸和水处理反应混合物,从而转化为相应的4-卤代-1,3-丁二醇,同时得到含有所述化合物的水溶液;进行环化反应 所述水溶液中的4-卤代-1,3-丁二醇;使用与水不混溶的有机溶剂从含3-羟基四氢呋喃的水溶液中萃取所得3-羟基四氢呋喃; 通过所得溶液的浓缩和/或蒸馏来使3-羟基四氢呋喃分离。

    .gamma.-oxo-homophenylalanine derivatives and process for producing
homophenylalanine derivatives by reducing the same
    25.
    发明授权
    .gamma.-oxo-homophenylalanine derivatives and process for producing homophenylalanine derivatives by reducing the same 失效
    γ-氧代 - 高苯丙氨酸衍生物和通过还原它们生产高苯丙氨酸衍生物的方法

    公开(公告)号:US5981794A

    公开(公告)日:1999-11-09

    申请号:US171170

    申请日:1998-12-03

    CPC分类号: C07C227/18 C07C227/08

    摘要: The present invention provides an economically advantageous and efficient process for producing an optically active homophenylalanine derivative of the general formula (IV), and an intermediate therefor and a process for producing it. The present invention relates to a process for producing homophenylalanine derivative of the general formula (IV) which comprises reacting a .beta.-benzoylacrylic acid derivative of the general formula (II) with a 1-arylethylamine derivative of the general formula (III) and reducing the resultant .gamma.-oxo-homophenylalanine derivative of the general formula (I). ##STR1##

    摘要翻译: PCT No.PCT / JP98 / 00580 Sec。 371日期1998年12月3日第 102(e)1998年12月3日日期PCT提交1998年2月13日PCT公布。 第WO98 / 35934号公报 日本1998年8月20日本发明提供了一种经济有利且有效的制备通式(IV)的光学活性高苯丙氨酸衍生物及其中间体及其生产方法的方法。 本发明涉及通式(Ⅳ)的高苯丙氨酸衍生物的制备方法,该方法包括使通式(II)的β-苯甲酰基丙烯酸衍生物与通式(Ⅲ)的1-芳乙胺衍生物反应, 得到通式(I)的γ-氧代 - 高苯丙氨酸衍生物。

    Method for producing (R)-3-[4-(trifluoromethyl) phenylamino]-pentanoic acid amide derivative
    26.
    发明授权
    Method for producing (R)-3-[4-(trifluoromethyl) phenylamino]-pentanoic acid amide derivative 失效
    (R)-3- [4-(三氟甲基)苯基氨基] - 戊酸酰胺衍生物的制备方法

    公开(公告)号:US07223859B2

    公开(公告)日:2007-05-29

    申请号:US10801141

    申请日:2004-03-16

    IPC分类号: C07D205/02 C07C233/00

    摘要: The present invention provides a method for easily producing an (R)-3-[4-(trifluoromethyl)phenylamino]-pentanoic acid amide derivative useful for an intermediate for pharmaceutical products, particularly an inhibitor of a cholesteryl ester transfer protein (CETP) from easily available raw materials. In the present invention, (S)-N-[4-(trifluoromethyl)phenyl]-3-hydroxypentanoic acid amide prepared from easily available raw materials leads a production of (R)-4-ethyl-1-[4-(trifluoromethyl)phenyl]-2-azetidinone to give (R)-3-[4-(trifluoromethyl)phenylamino]-pentanoic acid amide. Furthermore, (R)-4-ethyl-1-[4-(trifluoromethyl)phenyl]-2-azetidinone is reacted with a carbamic acid ester to give an (R)-3-[4-(trifluoromethyl)phenylamino]-pentanoic acid amide derivative.

    摘要翻译: 本发明提供了一种容易地制备用于药物产品中间体(特别是胆固醇酯转移蛋白(CETP)抑制剂)的(R)-3- [4-(三氟甲基)苯基氨基] - 戊酸酰胺衍生物的方法, 容易获得的原料。 在本发明中,由容易获得的原料制备的(S)-N- [4-(三氟甲基)苯基] -3-羟基戊酸酰胺导致(R)-4-乙基-1- [4-(三氟甲基) )苯基] -2-氮杂环丁酮,得到(R)-3- [4-(三氟甲基)苯基氨基] - 戊酸酰胺。 此外,将(R)-4-乙基-1- [4-(三氟甲基)苯基] -2-氮杂环丁酮与氨基甲酸酯反应,得到(R)-3- [4-(三氟甲基)苯基氨基] - 戊酸 酰胺衍生物。

    Process for preparing an enol silyl ether compound
    27.
    发明授权
    Process for preparing an enol silyl ether compound 失效
    制备固体硅胶化合物的方法

    公开(公告)号:US5071966A

    公开(公告)日:1991-12-10

    申请号:US576499

    申请日:1990-09-10

    IPC分类号: C07F7/02 C07F7/18

    CPC分类号: C07F7/186 C07F7/1852

    摘要: A process for preparing an enol silyl ether compound from a diazoacetoacetic acid ester having the general formula (IV): ##STR1## wherein R.sup.1 is a lower alkyl group having 1 to 6 carbon atoms, phenyl group, a substituted phenyl group, an aralkyl group or allyl group, and R.sup.2, R.sup.3 and R.sup.4 are the same or mutually different and each is a lower alkyl group having 1 to 6 carbon atoms, which comprises reacting a diazoacetoacetic acid ester having the general formula (I): ##STR2## wherein R.sup.1 is the same as defined above, with a trialkylsilyl chloride having the general formula (II): ##STR3## wherein R.sup.2, R.sup.3 and R.sup.4 are the same as defined above, in an inert solvent in the presence of an organic base and an alkali halide having the general formula (III):MX (III)wherein M is an alkaline metal and X is bromine atom or iodine atom. The desired compound is useful as an intermediate for synthesis of carbapenem .beta.-lactam antibiotics.

    摘要翻译: PCT No.PCT / JP90 / 00038 Sec。 371 1990年9月10日第 102(e)1990年9月10日PCT 1990年1月12日PCT PCT。 公开号WO90 / 08149 日本时间1990年7月26日。一种由具有通式(IV)的重氮乙酰乙酸酯制备烯醇甲硅烷基醚化合物的方法:其中R 1为具有1至6个碳原子的低级烷基,苯基 基团,取代的苯基,芳烷基或烯丙基,R 2,R 3和R 4相同或相互不同,各自为具有1至6个碳原子的低级烷基,其包括使具有一般性基团的重氮乙酰乙酸酯 式(I):其中R 1与上述定义相同,具有通式(II)的三烷基甲硅烷基氯:其中R2,R3和R4与上述定义相同 在有机碱和具有通式(III)的碱金属卤化物存在下,在惰性溶剂中反应:其中M是碱金属,X是溴原子或碘原子的MX(III)。 所需化合物可用作合成碳青霉烯β-内酰胺抗生素的中间体。