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    • 4. 发明公开
    • 1-(1'-(카복시메틸)시클로프로판메틸디설파닐메틸)시클로프로판아세트산과 그 유도체의 제조방법
    • 1- [1' - (羧甲基)环丙烷甲基甲硅烷基]环丙烷酸及其衍生物的新制备方法
    • KR1020130082017A
    • 2013-07-18
    • KR1020120003186
    • 2012-01-10
    • (주)위즈켐조양래
    • 조양래정선이허정희유혜리손효빈한나라지고운박정배
    • C07C315/00C07C327/14C07C329/00C07B61/00
    • C07C231/14C07C319/02C07C319/22C07C319/24C07C335/32C07C2601/02C07C323/60C07C323/53C07C233/03
    • PURPOSE: A manufacturing method is provided to produce 1'- (carboxymethyl) cyclopropane methylbenzalde methyl cyclopropane acetic acid and its derivatives, the precursor of 1- (mercaptomethyl) cyclopropane acetic acid, which play significant role in synthesizing an anti-asthmatic drug 'montelukast'. CONSTITUTION: In a manufacturing method of 1' - (carboxymethyl) cyclopropane methylbenzalde methyl cyclopropane acetic acid (1), cyclopropane acetic acid derivatives (2, 3) of the structural formula are reacted with disodium disulfide (Na2S2) to produce disulfide compound of the structural formula and to hydrolyze disulfide compound with disodium disulfide (Na2S2). X in the formula is a halogen atom or a sulfonate group and Y is an organic acid derivative. And Y is alkyl ester or aryl ester easy to be hydrolyzed as inorganic base like caustic soda, sodium carbonate, potassium hydroxide, potassium carbonate. A solvent used in a substitution reaction of the disodium disulfide is polar organic solvent like dimethylformamide, dimethyl sulphoxide, tetrahydrofuran, the dioxane etc., alcohols like ethanol and methanol, nitriles like acetonitrile, acetone like ketones or mixed solvent of these organic solvents and water condylar mixed solvents. [Reference numerals] (AA) Hydrolysis
    • 目的:提供制备1'-(羧甲基)环丙烷甲基苯甲醛甲基环丙烷乙酸及其衍生物的方法,1-(巯基甲基)环丙烷乙酸的前体,其在合成抗哮喘药物孟鲁司特方面起重要作用 ”。 构成:在1' - (羧甲基)环丙烷甲基苯甲醛甲基环丙烷乙酸(​​1)的制造方法中,结构式的环丙烷乙酸衍生物(2,3)与二硫化二钠(Na 2 S 2)反应,生成二硫化物 结构式,并用二硫化二钠(Na2S2)水解二硫化物。 式中的X是卤素原子或磺酸酯基,Y是有机酸衍生物。 Y是烷基酯或芳基酯,易于水解为无机碱如苛性钠,碳酸钠,氢氧化钾,碳酸钾。 在二硫化二砷的取代反应中使用的溶剂是极性有机溶剂如二甲基甲酰胺,二甲基亚砜,四氢呋喃,二恶烷等,醇如乙醇和甲醇,腈类如乙腈,丙酮如酮或这些有机溶剂的混合溶剂和水 髁混合溶剂。 (AA)水解