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    • 1. 发明申请
    • A METHOD FOR THE PREPARATION OF AN ENANTIOMER OF A TETRACYCLIC BENZAZEPINE
    • 一种制备四羧酸苯并噻唑类化合物的方法
    • WO2008125578A2
    • 2008-10-23
    • PCT/EP2008/054316
    • 2008-04-10
    • N.V. ORGANONKEMPERMAN, Gerardus Johannes
    • KEMPERMAN, Gerardus Johannes
    • C07D471/14
    • C07D471/14
    • The present invention relates to a method for the preparation of mirtazapine and tetracyclic analogous compounds having substantial enantiomeric excess of the R or S form. The invention further relates to a novel intermediate and its use for the preparation of mirtazapine having a substantial enantiomeric excess of the R or S form. The method comprising the steps of a: providing a carboxylic acid compound according to Formula (I) having a substantial enantiomeric excess of the R or S form, b: converting the carboxylic acid group of compound I into a ketone group, producing a ketone compound of Formula (II), c: optionally reducing ketone compound II with a mild reduction agent to form the intermediate hydroxy compound of Formula (III) and d: forming the mirtazapine of Formula (IV) by reduction of the ketone compound II or of the hydroxy compound III using a strong reduction agent.
    • 本发明涉及制备具有R或S形式的显着对映体过量的米氮平和四环类似物的方法。 本发明还涉及一种新的中间体及其用于制备具有R或S形式的基本对映体过量的米氮平的用途。 该方法包括以下步骤:a)提供具有R或S形式的基本对映异构体过量的式(I)的羧酸化合物,b:将化合物I的羧酸基团转化为酮基,产生酮化合物 式(II)的化合物,c:任选地用温和的还原剂还原酮化合物II以形成式(III)的中间体羟基化合物,和d:通过还原酮化合物II或式 羟基化合物III使用强还原剂。
    • 3. 发明申请
    • A METHOD FOR THE PREPARATION OF AN ENANTIOMERICALLY PURE BENZAZEPINE
    • 一种制备纯粹的苯甲腈的方法
    • WO2008125577A1
    • 2008-10-23
    • PCT/EP2008/054315
    • 2008-04-10
    • N.V. ORGANONSEERDEN, Johannes Paulus GerardusKEMPERMAN, Gerardus Johannes
    • KEMPERMAN, Gerardus Johannes
    • C07D471/04C07D471/14
    • C07D471/04C07D471/14
    • The invention relates to a method for the preparation of a cyclic compound according to formula (III) comprising reacting a compound according to Formula (I) and a compound according to formula (II), wherein in Formula (I), R 1 , R 2 , R 3 and R 4 may be hydrogen or substituent groups comprising one or more carbon atoms and/or hetero-atoms, wherein R 1 , R 2 , R 3 and R 4 can be combined in aromatic or aliphatic ring structures, -Y is a ring element comprising 1-3 substituted or unsubstituted carbon atoms and/or heteroatoms in the ring and -R 5 is hydrogen or a hydrocarbon substituent group comprising one or more carbon atoms and optionally one or more hetero atoms, and wherein in Formula (II), Z 1 and Z 2 are, leaving groups, X is a reactive functional hydrocarbon group for subsequent ring closure, comprising one or more carbon atoms and a reactive functional group and having a chain of between 1 to 6 atoms between the carbon atom attached to the central carbon atom of formula (II) and the reactive functional group and R 8 is hydrogen or a hydrocarbon substituent different from X making the central carbon atom of formula II a chiral centre in Formula (III) and wherein reactive functional group X can be or can be extended to be compound of formula (IV) which can be ring closed to produce the polycyclic component of formula (V). More in particular, the invention relates to the preparation of mirtazapine precursors and mirtazapine preferably having a substantial enantiomeric excess.
    • 本发明涉及制备根据式(III)的环状化合物的方法,包括使根据式(I)的化合物与式(II)化合物反应,其中在式(I)中R 1, R 1,R 2,R 3和R 4可以是氢或包含一个或多个碳原子的取代基和/或 杂原子,其中R 1,R 2,R 3和R 4可以在芳族或 脂族环结构-Y是在环中包含1-3个取代或未取代的碳原子和/或杂原子的环元素,-R 5是氢或包含一个或多个碳原子的烃取代基 和任选的一个或多个杂原子,并且其中在式(II)中,Z 1和Z 2是离去基团,X是用于后续环的反应性官能烃基 封闭,包含一个或多个碳原子和反应性官能团并具有一个CH 在连接到式(II)的中心碳原子的碳原子和反应性官能团和R 8之间的1至6个原子之间的ain是氢或与X不同的烃取代基,使得中心碳 式II的原子是式(III)中的手性中心,并且其中反应性官能团X可以或可以扩展为可以闭环以产生式(V)的多环组分的式(IV)化合物。 更具体地,本发明涉及米氮平前体和米氮平的制备,其优选具有显着的对映体过量。
    • 9. 发明公开
    • A METHOD FOR THE PREPARATION OF AN ENANTIOMERICALLY PURE BENZAZEPINE
    • 用于生产对映纯苯并氮杂
    • EP2102203A1
    • 2009-09-23
    • EP08736037.6
    • 2008-04-10
    • N.V. OrganonSeerden, Johannes Paulus Gerardus
    • KEMPERMAN, Gerardus Johannes
    • C07D471/04C07D471/14
    • C07D471/04C07D471/14
    • The invention relates to a method for the preparation of a cyclic compound according to formula (III) comprising reacting a compound according to Formula (I) and a compound according to formula (II), wherein in Formula (I), R1, R2, R3 and R4 may be hydrogen or substituent groups comprising one or more carbon atoms and/or hetero-atoms, wherein R1, R2, R3 and R4 can be combined in aromatic or aliphatic ring structures, -Y is a ring element comprising 1-3 substituted or unsubstituted carbon atoms and/or heteroatoms in the ring and -R5 is hydrogen or a hydrocarbon substituent group comprising one or more carbon atoms and optionally one or more hetero atoms, and wherein in Formula (II), Z1 and Z2 are, leaving groups, X is a reactive functional hydrocarbon group for subsequent ring closure, comprising one or more carbon atoms and a reactive functional group and having a chain of between 1 to 6 atoms between the carbon atom attached to the central carbon atom of formula (II) and the reactive functional group and R8 is hydrogen or a hydrocarbon substituent different from X making the central carbon atom of formula II a chiral centre in Formula (III) and wherein reactive functional group X can be or can be extended to be compound of formula (IV) which can be ring closed to produce the polycyclic component of formula (V). More in particular, the invention relates to the preparation of mirtazapine precursors and mirtazapine preferably having a substantial enantiomeric excess.