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    • 2. 发明公开
    • 4-[(알킬설판일)메틸]-1,2-벤젠디올 유도체, 이의제조방법 및 이를 포함하는 항산화제
    • 4-((ALKYLSULFANYL))甲基| -1,2-苯二酮衍生物,其制备方法和含有衍生物的抗氧化剂
    • KR1020040017867A
    • 2004-03-02
    • KR1020020049788
    • 2002-08-22
    • 서홍석최원철김대덕송영옥최재수한상민
    • 최원철서홍석최재수김대덕송영옥김재곤
    • C07C323/16
    • A61K8/46A61Q19/02C07C323/16C07D317/54
    • PURPOSE: A novel 4-£(alkylsulfanyl)methyl|-1,2-benzenediol derivative, its preparation method and a composition containing the derivative for an antioxidant, a whitening agent or a cholesterol controller are provided, to obtain the compound which suppresses the generation of melanin and controls the concentration of cholesterol by suppressing the oxidation of low density lipoprotein. CONSTITUTION: The 4-£(alkylsulfanyl)methyl|-1,2-benzenediol derivative is represented by the formula 1, wherein R is an alkyl group of C1-C10. The method comprises the step of reacting the 1,3-benzodioxol-5-yl-methanol of the formula 2 with the alkylthiol represented by R-SH in the presence of an acid, wherein R is an alkyl group of C1-C10. Preferably the acid is selected from the group consisting of AlCl3, FeBr3, FeCl3 and BBr3; and the reaction is performed in at least one solvent selected from the group consisting of dichloromethane, chloroform, acetonitrile, tetrahydrofuran and dimethyl formaldehyde.
    • 目的:提供一种新型的4-(烷基硫烷基)甲基-1,2-苯二醇衍生物及其制备方法和含有抗氧化剂,增白剂或胆固醇控制剂的衍生物的组合物,以获得抑制 通过抑制低密度脂蛋白的氧化来产生黑色素并控制胆固醇的浓度。 构成:4-(烷基硫烷基)甲基| -1,2-苯二醇衍生物由式1表示,其中R是C1-C10的烷基。 该方法包括使式2的1,3-苯并间二氧杂环戊烯-5-基 - 甲醇与由R-SH表示的烷基硫醇在酸存在下反应的步骤,其中R是C1-C10的烷基。 优选酸选自AlCl 3,FeBr 3,FeCl 3和BBr 3; 并且反应在至少一种选自二氯甲烷,氯仿,乙腈,四氢呋喃和二甲基甲醛的溶剂中进行。
    • 3. 发明公开
    • 2,3,6-트리브롬-4,5-디히드록시벤질 메틸에테르와 그유도체, 이들의 제조방법 및 이를 함유하는 항산화제 조성물
    • 2,3,6-三溴-4,5-二羟基苄基甲基醚及其衍生物,其制备方法和含有该化合物的抗氧化剂组合物
    • KR1020030055757A
    • 2003-07-04
    • KR1020010085835
    • 2001-12-27
    • 서홍석박장수최재수최원철
    • 서홍석최재수최원철박장수노중현김재곤
    • C07C43/14
    • PURPOSE: A 2,3,6-tribromo-4,5-dihydroxybenzylmethyl ether, its derivative, their preparation method, an intermediate used to the preparation, an extract of Symphyocladia latiuscula, and an antioxidant composition, arteriosclerosis preventing agent and cholesterol controlling agent containing the compound or the extract are provided, which compound is obtained by organic synthesis method or is separated from Symphyocladia latiuscula and has an antioxidizing effect. CONSTITUTION: The 2,3,6-tribromo-4,5-dihydroxybenzylmethyl ether or its derivative is represented by the formula 1, wherein X is OH, a methoxy group, an ethoxy group, an ethylsulfanyl group or a cyclohexanoyl group; and Y is H or Br. The method comprises the steps of dissolving 3,4-dihydroxybenzaldehyde and phosphorus pentoxide in toluene with stirring, and adding acetone to the mixture to prepare 2,2-dimethyl-1,3-benzodioxol-5-carboaldehyde of the formula 5; dissolving the obtained compound in dichloromethane, adding DIBAL solution to the mixture, stirring it and adding methyl alcohol to prepare (2,2-dimethyl-1,3-benzodioxol-5-yl)methanol of the formula 6; and dissolving the obtained compound in water and HCl, stirring it, and adding bromine to prepare 4,5,7-tribromo-6-(bromomethyl)-2,2-dimethyl-1,3-benzodioxole of the formula 8. The extract of Symphyocladia latiuscula is obtained from the dichloromethane fraction of Symphyocladia latiuscula.
    • 目的:2,3,6-三溴-4,5-二羟基苄基甲基醚,其衍生物,其制备方法,制备中间体,斜方胶提取物和抗氧化剂组合物,动脉硬化预防剂和胆固醇控制剂 提供含有化合物或提取物的化合物,该化合物通过有机合成方法获得或从Sym is属中分离并具有抗氧化作用。 构成:2,3,6-三溴-4,5-二羟基苄基甲基醚或其衍生物由式1表示,其中X为OH,甲氧基,乙氧基,乙基硫烷基或环己酰基; Y为H或Br。 该方法包括在搅拌下将3,4-二羟基苯甲醛和五氧化二磷溶解在甲苯中的步骤,向混合物中加入丙酮以制备式5的2,2-二甲基-1,3-苯并间二氧杂环戊烯-5-甲醛; 将得到的化合物溶解在二氯甲烷中,向混合物中加入DIBAL溶液,搅拌并加入甲醇制备式6的(2,2-二甲基-1,3-苯并间二氧杂环戊烯-5-基)甲醇; 并将所得化合物溶解在水和HCl中,搅拌并加入溴以制备式8的4,5,7-三溴-6-(溴甲基)-2,2-二甲基-1,3-苯并间二氧杂环戊烯。提取物 的紫花苜蓿是从雪莲属的二氯甲烷部分获得的。