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    • 27. 发明公开
    • 2-클로로피리딘의 제조방법
    • 生产2-氯吡啶的方法
    • KR1020010081700A
    • 2001-08-29
    • KR1020000007761
    • 2000-02-18
    • 주식회사 유니온 케미칼
    • 박외숙정재철
    • C07D213/16
    • PURPOSE: A method for producing 2-chloropyridine is provided, thereby the title compound having the improved stereo-selectivity can be cheaply produced in higher yield. CONSTITUTION: 2-chloropyridine of the formula is produced by solubilizing pyridine-1-oxide in organic solvent and reacting the mixture at from 0 deg. C to below boiling temperature of solvent in the presence of chlorinating agents and base, in which the chlorinating agents are phosphoryl chloride, thionyl chloride, sulfunyl chloride, p-toluenesufonyl chloride, benzensulfonyl chloride, and methanesulfonyl chloride, and base is selected from inorganic base such as potassium carbonate, sodium carbonate, ammonium carbonate, lower alkyl amine, lower dialkyl amines, lower trialkyl amines, aniline, N-methylaniline, N,N-dimethylaniline, and lower alkoxides.
    • 目的:提供2-氯吡啶的制造方法,由此,具有提高的立体选择性的标题化合物可以以较高的收率廉价地生产。 构成:通过将吡啶-1-氧化物溶解在有机溶剂中并使混合物在0℃下反应制备下式的2-氯吡啶。 在氯化剂和碱的存在下,C以低于溶剂的沸点温度,其中氯化剂是磷酰氯,亚硫酰氯,亚磺酰氯,对甲苯磺酰氯,苯磺酰氯和甲磺酰氯,碱选自无机碱 如碳酸钾,碳酸钠,碳酸铵,低级烷基胺,低级二烷基胺,低级三烷基胺,苯胺,N-甲基苯胺,N,N-二甲基苯胺和低级醇盐。
    • 28. 发明公开
    • 신규의 3-니트로피리딘 유도체 및 그를 포함하는 약학적조성물
    • 新型3-硝基吡啶衍生物和含有其的药物组合物
    • KR1020010048570A
    • 2001-06-15
    • KR1019990053295
    • 1999-11-27
    • 동화약품주식회사
    • 윤성준이상욱김남두박용균이근형김종우박상진박희정신동혁
    • C07D213/16
    • PURPOSE: Novel 3-nitropyridine derivatives inhibiting the growth of HBV and HIV, a pharmaceutically acceptable salt thereof, a preparation thereof and an antiviral composition containing the compound as an effective component are provided, which show less adverse effects and can be effectively used for prevention and treatment of hapatitis B and HBV and HIV. CONSTITUTION: The novel 3-nitropyridine derivatives of formula 1 are prepared by the following processes: 2-chloro-6-methoxy-3-nitropyridine of formula 2 and 5-aminoindazole or 6-aminoindazole of the formula; R2-NH2 are reacted in the presence of a base to produce 3-nitropyridine derivative of formula 1a and the obtained 3-nitropyridine derivative is reacted with an amine compound(R1-NH2). In formula, R1 is H, C1-4 straight or branched alkylamino or C3-6 cycloalkylamino; R2 is indazole-5-yl or indazole-6-yl.
    • 目的:提供抑制HBV和HIV生长的新型3-硝基吡啶衍生物,其药学上可接受的盐,其制备方法和含有该化合物作为有效成分的抗病毒组合物,其具有较少的副作用并可有效地用于预防 和乙型肝炎和乙型肝炎病毒和艾滋病毒的治疗。 构型:式1的新型3-硝基吡啶衍生物通过以下方法制备:式2的2-氯-6-甲氧基-3-硝基吡啶和下式的5-氨基吲唑或6-氨基吲唑; R2-NH2在碱的存在下反应,得到式1a的3-硝基吡啶衍生物,将得到的3-硝基吡啶衍生物与胺化合物(R1-NH2)反应。 在式中,R 1是H,C 1-4直链或支链烷基氨基或C 3-6环烷基氨基; R2是吲唑-5-基或吲唑-6-基。