Process for the preparation of 4-azasteroids
    11.
    发明申请
    Process for the preparation of 4-azasteroids 审中-公开
    制备4-azasteroids的方法

    公开(公告)号:US20120226044A1

    公开(公告)日:2012-09-06

    申请号:US11630562

    申请日:2005-07-04

    IPC分类号: C07D221/18

    CPC分类号: C07J73/005

    摘要: A process for the preparation of 4-steroids of the formula: R1 and R2 are independently selected from the group that is hydrogen, F, Cl, Br, I, C1-6-allyl and C1-6-alkoxy, and R4 is selected from the group that is hydrogen, (N,N-di-C1-6-allylamino)methyl, allylamino)ethyl, C1-6-alkyl, C1-6-alkoxy, phenyl and benzyl, and Q7 represents a carbonyl oxygen atom or is R7-1 and R7-2, wherein one of R7-1 and R7-2 is hydrogen and the other is selected from the group that is hydrogen, F, Cl, Br, I, C1-6-alkyl and C1-6-alkoxy, and R9 represents hydrogen or F, and Q11 represents a carbonyl oxygen atom or is R11-1 and R11-2, wherein one of R11-1 and R11-2 is hydrogen and the other is selected from the group that is hydrogen, cyano, cyano-C1-3-alkyl, acetoxy, COOH and COO−M+, wherein M+ is Na+, K+ or NH+4, and R16 is selected from the group that is hydrogen, cyano, cyano-C1-3-alkyl, acetoxy, COOH and COO−M+, wherein M+ is Na+, K+ or NH+4, and COOR represents COOH or COO−M+, wherein M+ is Na+, K+ or NH+4. The three step process includes (i) a haloform reaction of a 17-acetyl steroid converting the acetyl group into a —COOR group, (ii) subsequent ozonolysis of the A-ring and (iii) reclosure of the A-ring by reaction with an appropriate nitrogen compound of formula H2NR4 to afford a compound of formula I above.

    摘要翻译: 用于制备下式的4-类固醇的方法:R 1和R 2独立地选自氢,F,Cl,Br,I,C 1-6 - 烯丙基和C 1-6 - 烷氧基,并且选择R 4 (N,N-二-C 1-6烯丙基氨基)甲基,烯丙基氨基)乙基,C 1-6 - 烷基,C 1-6 - 烷氧基,苯基和苄基,Q 7表示羰基氧原子或 是R7-1和R7-2,其中R7-1和R7-2之一是氢,另一个选自氢,F,Cl,Br,I,C 1-6 - 烷基和C 1-6的基团 - 烷氧基,R 9表示氢或F,Q 11表示羰基氧原子,或者是R 11-1和R 11-2,其中R 11-1和R 11-2中的一个是氢,另一个选自氢 ,氰基,氰基-C 1-3 - 烷基,乙酰氧基,COOH和COO-M +,其中M +是Na +,K +或NH + 4,R 16选自氢,氰基,氰基-C 1-3 - ,乙酰氧基,COOH和COO-M +,其中M +是Na +,K +或NH + 4,COOR表示COOH或COO-M +,其中M +是Na + K +或NH + 4。 三步法包括(i)将乙酰基转化为-COOR基团的17-乙酰基类固醇的卤代甲酰化反应,(ii)A环随后的臭氧分解和(iii)通过与 合适的式H2NR4的氮化合物,得到上述式I的化合物。

    Procedure for producing formyl imidazoles
    12.
    发明授权
    Procedure for producing formyl imidazoles 失效
    甲酰咪唑的制备方法

    公开(公告)号:US06258958B1

    公开(公告)日:2001-07-10

    申请号:US09719380

    申请日:2000-12-11

    IPC分类号: C07D23322

    CPC分类号: C07D233/64

    摘要: A new procedure for the catalytic conversion of hydroxy methyl imidazoles to formyl imidazoles is described. The catalysis takes place in the presence of a peroxide. Formyl imidazoles are important intermediate products for pharmaceutical substances.

    摘要翻译: 描述了将羟基甲基咪唑催化转化成甲酰基咪唑的新方法。 催化在过氧化物存在下进行。 甲酰咪唑是药物物质的重要中间产物。

    Method for preparing pyrimidin-2-ylacetic acid esters
    13.
    发明授权
    Method for preparing pyrimidin-2-ylacetic acid esters 失效
    制备嘧啶-2-基乙酸酯的方法

    公开(公告)号:US5821368A

    公开(公告)日:1998-10-13

    申请号:US889442

    申请日:1997-07-08

    CPC分类号: C07D239/52

    摘要: A method for preparing pyrimidin-2-ylacetic acid esters of the general formula: ##STR1## wherein R is C.sub.1-6 -alkyl, C.sub.3-6 -cycloalkyl, aryl or arylalkyl and R.sup.1 to R.sup.3, independently of one another, are hydrogen, C.sub.1-6 -alkyl, fluorinated C.sub.1-6 -alkyl, C.sub.1-6 -alkoxy, (C.sub.1-6 -alkoxy)-C.sub.1-6 -alkyl or (C.sub.1-6 -alkoxy)carbonyl. These esters are obtained from the corresponding 2-(halomethyl)-pyrimidine, the corresponding alcohol ROH and carbon monoxide in the presence of a palladium-phosphine complex and a base. Pyrimidin-2-ylacetic acid esters are intermediates in the preparation of herbicides.

    摘要翻译: 制备通式如下的嘧啶-2-基乙酸酯的方法:其中R是C 1-6 - 烷基,C 3-6 - 环烷基,芳基或芳基烷基和R 1 -R 3,彼此独立地是氢 ,C 1-6 - 烷基,氟化C 1-6 - 烷基,C 1-6 - 烷氧基,(C 1-6 - 烷氧基)-C 1-6 - 烷基或(C 1-6 - 烷氧基)羰基。 这些酯在钯 - 膦配合物和碱的存在下由相应的2-(卤代甲基) - 嘧啶,相应的醇ROH和一氧化碳获得。 嘧啶-2-基乙酸酯是制备除草剂的中间体。

    Process for preparing 1-(6-methylpyridin-3-yl)-2-[4-methylsulphonyl)-phenyl]ethanone
    14.
    发明授权
    Process for preparing 1-(6-methylpyridin-3-yl)-2-[4-methylsulphonyl)-phenyl]ethanone 失效
    1-(6-甲基吡啶-3-基)-2- [4-甲基磺酰基] - 苯基]乙酮的制备方法

    公开(公告)号:US06566527B1

    公开(公告)日:2003-05-20

    申请号:US10030096

    申请日:2002-03-14

    IPC分类号: C07D21360

    CPC分类号: C07D213/50

    摘要: A five-step process for preparing 1-(6-methylpyridin-3-yl)-2-[4-methylsulfonyl)phenyl]ethanone of formula (I): The process involves the following steps: (a) 4-(methylthio)benzyl alcohol is converted into 4-(methylthio)benzyl chloride; (b) 4-(methylthio)benzyl chloride is converted with an alkali metal cyanide into 4-(methylthio)phenylacetonitrile; (c) 4-(methylthio)phenylacetonitrile is condensed with a 6-methyinicotinic ester to give 3-[2-(2-(methylthio)phenyl)-2-cyanoacetyl](6-methyl)pyridine; (d) 3-[2-(4-(methylthio)phenyl-2-cyanoacetyl](6-methyl)pyridine is hydrolyzed and decarboxylated under acidic conditions to give 3-[2-(4-(methylthio)-phenyl)acetyl](6-methyl)pyridine is hydrolyzed and decarboxylated under acidic conditions to give 3-[2-(4-(methylthio)phenyl)acetyl(6-methyl)pyridine; and (e) 3-[2(4-(methylthio)phenyl)acetyl](6-methyl)pyridine is oxidized to give the end product. The compound of formula (I) is an intermediate for preparing COX-2 inhibitors, pharmaceutically active compounds having analgesic and antiinflammatory action.

    摘要翻译: 制备式(I)的1-(6-甲基吡啶-3-基)-2- [4-甲基磺酰基]苯基]乙酮的五步方法:该方法包括以下步骤:(a)4-(甲硫基) 苄醇转化成4-(甲硫基)苄基氯; (b)4-(甲硫基)苄基氯用碱金属氰化物转化成4-(甲硫基)苯乙腈; (c)4-(甲硫基)苯基乙腈与6-甲基烟酰酯缩合,得到3- [2-(2-(甲硫基)苯基)-2-氰基乙酰基](6-甲基)吡啶; (d)3- [2-(4-(甲硫基)苯基-2-氰基乙酰基](6-甲基)吡啶在酸性条件下水解脱羧,得到3- [2-(4-(甲硫基) - 苯基)乙酰基 ](6-甲基)吡啶在酸性条件下水解和脱羧,得到3- [2-(4-(甲硫基)苯基)乙酰基(6-甲基)吡啶;和(e)3- [2-(4- )苯基)乙酰基](6-甲基)吡啶被氧化得到最终产物。式(I)化合物是制备COX-2抑制剂,具有止痛和抗炎作用的药物活性化合物的中间体。

    Process for preparing 2- pyrimidinecarboxylates
    15.
    发明授权
    Process for preparing 2- pyrimidinecarboxylates 失效
    2-嘧啶羧酸盐的制备方法

    公开(公告)号:US5869667A

    公开(公告)日:1999-02-09

    申请号:US891787

    申请日:1997-07-14

    CPC分类号: C07D239/52

    摘要: A process for preparing 2-pyrimidinecarboxylates of the general formula: ##STR1## wherein R is C.sub.1-6 -alkyl, C.sub.3-6 -cycloalkyl, aryl or arylalkyl, and R.sup.1 to R.sup.3 are, independently of one another, hydrogen, C.sub.1-6 -alkyl, fluorinated C.sub.1-6 -alkyl, C.sub.1-6 -alkoxy, (C.sub.1-6 -alkoxy)-C.sub.1-6 -alkyl or (C.sub.1-6 -alkoxy)carbonyl. These are obtained from the corresponding 2-halopyrimidine, the corresponding alcohol ROH and carbon monoxide in the presence of a palladium/phosphine complex and a base. 2-pyrimidinecarboxylates are intermediates for preparing herbicides.

    摘要翻译: 制备通式如下的2-嘧啶羧酸盐的方法:其中R为C 1-6 - 烷基,C 3-6 - 环烷基,芳基或芳基烷基,且R 1至R 3彼此独立地为氢,C1- 氟代C 1-6 - 烷基,C 1-6 - 烷氧基,(C 1-6 - 烷氧基)-C 1-6 - 烷基或(C 1-6 - 烷氧基)羰基。 它们由钯/膦配合物和碱存在下由相应的2-卤代嘧啶,相应的醇ROH和一氧化碳获得。 2-嘧啶羧酸盐是制备除草剂的中间体。

    Process for preparing 1-(6-methylpyridin-3-yl)-2-[4-(methylsulfony)phenyl]ethanone
    16.
    发明授权
    Process for preparing 1-(6-methylpyridin-3-yl)-2-[4-(methylsulfony)phenyl]ethanone 失效
    1-(6-甲基吡啶-3-基)-2- [4-(甲基磺酰基)苯基]乙酮的制备方法

    公开(公告)号:US06600046B2

    公开(公告)日:2003-07-29

    申请号:US10283167

    申请日:2002-10-30

    IPC分类号: C07D21346

    CPC分类号: C07D213/50

    摘要: The process for preparing 1-(6-methylpyridin-3-yl)-2-[(4-methlsulfonyl)-phenyl]ethanone of the formula I: In a first step, 4-(methylthio)phenylacetonitrile is condensed with a 6-methylnicotinic ester to give 3-[2-(4-(methlthio)phenyl)-2-cyanoacetyl](6-methyl)pyridine of the formula II: In a second step, the compound of formula II is hydrolyzed and decarboxylated under acidic conditions using a mixture of acetic acid and a mineral acid, to give 3-[2-(4-(methylthio)phenyl)acetyl](6-methyl)pyridine of the formula III: Finally, in a last step, the compound of formula III is oxidized to give the end product.

    摘要翻译: 制备式I的1-(6-甲基吡啶-3-基)-2 - [(4-甲基吡啶基) - 苯基]乙酮的方法:在第一步中,将4-(甲硫基)苯基乙腈与6- 甲基烟酸酯,得到式II的3- [2-(4-(甲基硫基)苯基)-2-氰基乙酰基](6-甲基)吡啶:在第二步中,将式II化合物在酸性条件下水解和脱羧 使用乙酸和无机酸的混合物,得到式III的3- [2-(4-(甲硫基)苯基)乙酰基](6-甲基)吡啶:最后,在最后一步中, III被氧化得到最终产物。