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    • 7. 发明公开
    • 6-[4-(2-피페리딘-1-일-에톡시)-페닐]-3-피리딘-4-일-피라졸로[1,5-a]피리미딘의 제조방법
    • 制备6- [4-(2-哌啶-1-基 - 乙氧基) - 苯基] -3-吡啶-4-基] - 吡咯并[1,5-a]吡嗪的方法
    • KR1020070065653A
    • 2007-06-25
    • KR1020050126303
    • 2005-12-20
    • 에스케이케미칼주식회사
    • 이준원이석호김남호이남규하주헌
    • C07D487/04
    • Provided is a method for preparing 6-[4-(2-piperidine-1-yl-ethoxy)-phenyl]-3-pyridine-4-yl-pyrazolo[1,5-a]pyrimidine with high purity and high yield by using a start material and a reacting materials capable of being commercially used and applying optimal reacting condition. The method comprises the steps of: (a) reacting pyridine-4-yl-acetonitrile hydrogen chloride represented by the formula(2) with N,N-dimethylformamide dimethylacetal(DMFDMA) in the presence of an amine base such as triethylamine, pyridine and piperidine and an aromatic hydrocarbon solvent to prepare 3-dimethylamino-2-pyridine-4-yl-acrylonitrile represented by the formula(3); (b) reacting the compound of the formula(3) with hydrazine monohydrate in the presence of an acetic acid catalyst and an alcohol solvent to prepare 4-pyridyl-2H-pyrazol-3-ylamine represented by the formula(4); (c) reacting the compound of the formula(4) with 2-(4-methoxyphenyl)malondialdehyde represented by the formula(5) in the presence of an acetic acid catalyst and an alcohol solvent to prepare 6-(4-methoxy-phenyl)-3-pyridine-4-yl-pyrazolo[1,5-a]pyrimidine represented by the formula(6); (d) acid-hydrolyzing the compound of the formula(6) using a halogenated hydrogen catalyst such as HF, HCl and HBr and an acetic acid solvent to prepare 4-(3-pyridine-4-yl-pyrazolo[1,5-1]pyrimidine-6-yl)-phenol represented by the formula(7); and (e) reacting the compound of the formula(7) with chloroethylpiperidine hydrogen chloride represented by the formula(8) in the presence of Cs2CO3 and an alcohol solvent with agitation to prepare 6-[4-(2-piperidine-1-yl-ethoxy)-phenyl]-3-pyridine-4-yl-pyrazolo[1,5-a]pyrimidine.
    • 提供了通过以下方法制备具有高纯度和高产率的6- [4-(2-哌啶-1-基 - 乙氧基) - 苯基] -3-吡啶-4-基 - 吡唑并[1,5-a]嘧啶的方法, 使用能够商业使用的起始材料和反应材料并施加最佳的反应条件。 该方法包括以下步骤:(a)将式(2)表示的吡啶-4-基 - 乙腈氯化氢与N,N-二甲基甲酰胺二甲基缩醛(DMFDMA)在胺碱如三乙胺,吡啶和 哌啶和芳烃溶剂,制备由式(3)表示的3-二甲基氨基-2-吡啶-4-基 - 丙烯腈。 (b)在乙酸催化剂和醇溶剂的存在下使式(3)的化合物与一水合肼反应,制备由式(4)表示的4-吡啶基-2H-吡唑-3-基胺; (c)使式(4)的化合物与式(5)所示的2-(4-甲氧基苯基)丙二醛在乙酸催化剂和醇溶剂的存在下反应,从而制备6-(4-甲氧基 - 苯基) )-3-吡啶-4-基 - 吡唑并[1,5-a]嘧啶; (d)使用卤化氢催化剂如HF,HCl和HBr和乙酸溶剂酸化水解式(6)的化合物以制备4-(3-吡啶-4-基 - 吡唑并[1,5- 1]嘧啶-6-基) - 苯酚。 和(e)在Cs 2 CO 3和醇溶剂存在下,搅拌下使式(7)化合物与式(8)所示的氯乙基哌啶氯化氢反应,得到6- [4-(2-哌啶-1-基 - 乙氧基) - 苯基] -3-吡啶-4-基 - 吡唑并[1,5-a]嘧啶。
    • 9. 发明公开
    • 피롤로피리미디논 유도체와 이의 제조방법 및 이의 용도
    • 吡咯烷酮衍生物,其制备方法及其用途
    • KR1020030086911A
    • 2003-11-12
    • KR1020030027197
    • 2003-04-29
    • 에스케이케미칼주식회사주식회사 인투젠
    • 김대기이주영임광진최진영김재선류제호정재윤이준원김태곤서정우한혜영김택수정인호
    • C07D487/04
    • C07D487/04
    • PURPOSE: pyrrolopyrimidinone derivatives, a preparation process thereof and the use thereof are provided. The compounds have improved selective PDE V(cGMP specific PDE) inhibiting activity, so that they can be useful for treatment of diseases associated with PDE V. CONSTITUTION: Pyrrolopyrimidinone derivatives of the formula 1, pharmaceutically acceptable salts and solvates thereof are provided, wherein R1 is hydrogen, one or more fluoro optionally substituted C1-C3 alkyl; R2 is hydrogen, hydroxy, C1-C3 alkoxy, and one or more fluoro optionally substituted C1-C6 alkyl, C3-C6 cycloalkyl, C2-C6 alkenyl, or C2-C6 alkynyl; R4 is one or more fluoro optionally substituted C1-C6 alkyl, C2-C6 alkenyl, C2-C6 alkynyl, or C3-C6 cycloalkyl; W is N or CH; n is an integer of 1 to 6; R5 is COR6, COOR6 or COCH(R7)NH2; R6 is phenyl or aromatic heterocycle optionally substituted by 1 to 4 substituents selected from halogen, C1-C4 alkyl, C1-C4 alkoxy, OH, NH2, NO2, CN, COOH, C1-C4 aminoalkyl, C1-C4 alkylamino, C1-C4 acyl, C1-C4 acylamino, C1-C4 alkylthio, C1-C4 perfluoroalkyl, C1-C4 perfluoroalkoxy and C1-C4 alkoxycarbonyl, C1-C16 alkyl, C2-C16 alkenyl or C2-C16 alkynyl optionally substituted by 1 to 4 substituents selected from one or more halogen, C1-C4 alkoxy, OH, NH2, NO2, CN, COOH, C1-C4 aminoalkyl, C1-C4 alkylamino, C1-C4 acyl, C1-C4 acylamino, C1-C4 alkylthio, C1-C4 perfluoroalkyl, C1-C4 perfluoroalkoxy, C1-C4 alkoxycarbonyl, phenyl and aromatic heterocycle; and R7 is natural amino acid residue.
    • 目的:提供吡咯并嘧啶酮衍生物及其制备方法及其用途。 所述化合物具有改善的选择性PDE V(cGMP特异性PDE)抑制活性,因此它们可用于治疗与PDE V相关的疾病。构成:提供式1的吡咯并嘧啶酮衍生物,其药学上可接受的盐和溶剂合物,其中R1 一个或多个氟任选取代的C 1 -C 3烷基; R 2是氢,羟基,C 1 -C 3烷氧基和一个或多个氟任选取代的C 1 -C 6烷基,C 3 -C 6环烷基,C 2 -C 6烯基或C 2 -C 6炔基; R4是一个或多个氟任选取代的C 1 -C 6烷基,C 2 -C 6烯基,C 2 -C 6炔基或C 3 -C 6环烷基; W是N或CH; n为1〜6的整数。 R5是COR6,COOR6或COCH(R7)NH2; R6是任选被1至4个选自卤素,C 1 -C 4烷基,C 1 -C 4烷氧基,OH,NH 2,NO 2,CN,COOH,C 1 -C 4氨基烷基,C 1 -C 4烷基氨基,C 1 -C 4的取代基取代的苯基或芳族杂环 酰基,C 1 -C 4酰氨基,C 1 -C 4烷硫基,C 1 -C 4全氟烷基,C 1 -C 4全氟烷氧基和C 1 -C 4烷氧基羰基,C 1 -C 16烷基,C 2 -C 16链烯基或任选被1至4个选自 一个或多个卤素,C 1 -C 4烷氧基,OH,NH 2,NO 2,CN,COOH,C 1 -C 4氨基烷基,C 1 -C 4烷基氨基,C 1 -C 4酰基,C 1 -C 4酰氨基,C 1 -C 4烷硫基,C 1 -C 4全氟烷基, C1-C4全氟烷氧基,C1-C4烷氧基羰基,苯基和芳族杂环; 而R7是天然氨基酸残基。